// This file is @generated by prost-build.
/// A partition ID identifies a grouping of entities. The grouping is always
/// by project and namespace, however the namespace ID may be empty.
///
/// A partition ID contains several dimensions:
/// project ID and namespace ID.
///
/// Partition dimensions:
///
/// - May be `""`.
/// - Must be valid UTF-8 bytes.
/// - Must have values that match regex `\[A-Za-z\d\.\-_\]{1,100}`
/// If the value of any dimension matches regex `__.*__`, the partition is
/// reserved/read-only.
/// A reserved/read-only partition ID is forbidden in certain documented
/// contexts.
///
/// Foreign partition IDs (in which the project ID does
/// not match the context project ID ) are discouraged.
/// Reads and writes of foreign partition IDs may fail if the project is not in
/// an active state.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct PartitionId {
    /// The ID of the project to which the entities belong.
    #[prost(string, tag = "2")]
    pub project_id: ::prost::alloc::string::String,
    /// If not empty, the ID of the database to which the entities
    /// belong.
    #[prost(string, tag = "3")]
    pub database_id: ::prost::alloc::string::String,
    /// If not empty, the ID of the namespace to which the entities belong.
    #[prost(string, tag = "4")]
    pub namespace_id: ::prost::alloc::string::String,
}
/// A unique identifier for an entity.
/// If a key's partition ID or any of its path kinds or names are
/// reserved/read-only, the key is reserved/read-only.
/// A reserved/read-only key is forbidden in certain documented contexts.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Key {
    /// Entities are partitioned into subsets, currently identified by a project
    /// ID and namespace ID.
    /// Queries are scoped to a single partition.
    #[prost(message, optional, tag = "1")]
    pub partition_id: ::core::option::Option<PartitionId>,
    /// The entity path.
    /// An entity path consists of one or more elements composed of a kind and a
    /// string or numerical identifier, which identify entities. The first
    /// element identifies a _root entity_, the second element identifies
    /// a _child_ of the root entity, the third element identifies a child of the
    /// second entity, and so forth. The entities identified by all prefixes of
    /// the path are called the element's _ancestors_.
    ///
    /// An entity path is always fully complete: *all* of the entity's ancestors
    /// are required to be in the path along with the entity identifier itself.
    /// The only exception is that in some documented cases, the identifier in the
    /// last path element (for the entity) itself may be omitted. For example,
    /// the last path element of the key of `Mutation.insert` may have no
    /// identifier.
    ///
    /// A path can never be empty, and a path can have at most 100 elements.
    #[prost(message, repeated, tag = "2")]
    pub path: ::prost::alloc::vec::Vec<key::PathElement>,
}
/// Nested message and enum types in `Key`.
pub mod key {
    /// A (kind, ID/name) pair used to construct a key path.
    ///
    /// If either name or ID is set, the element is complete.
    /// If neither is set, the element is incomplete.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct PathElement {
        /// The kind of the entity.
        ///
        /// A kind matching regex `__.*__` is reserved/read-only.
        /// A kind must not contain more than 1500 bytes when UTF-8 encoded.
        /// Cannot be `""`.
        ///
        /// Must be valid UTF-8 bytes. Legacy values that are not valid UTF-8 are
        /// encoded as `__bytes<X>__` where `<X>` is the base-64 encoding of the
        /// bytes.
        #[prost(string, tag = "1")]
        pub kind: ::prost::alloc::string::String,
        /// The type of ID.
        #[prost(oneof = "path_element::IdType", tags = "2, 3")]
        pub id_type: ::core::option::Option<path_element::IdType>,
    }
    /// Nested message and enum types in `PathElement`.
    pub mod path_element {
        /// The type of ID.
        #[allow(clippy::derive_partial_eq_without_eq)]
        #[derive(Clone, PartialEq, ::prost::Oneof)]
        pub enum IdType {
            /// The auto-allocated ID of the entity.
            ///
            /// Never equal to zero. Values less than zero are discouraged and may not
            /// be supported in the future.
            #[prost(int64, tag = "2")]
            Id(i64),
            /// The name of the entity.
            ///
            /// A name matching regex `__.*__` is reserved/read-only.
            /// A name must not be more than 1500 bytes when UTF-8 encoded.
            /// Cannot be `""`.
            ///
            /// Must be valid UTF-8 bytes. Legacy values that are not valid UTF-8 are
            /// encoded as `__bytes<X>__` where `<X>` is the base-64 encoding of the
            /// bytes.
            #[prost(string, tag = "3")]
            Name(::prost::alloc::string::String),
        }
    }
}
/// An array value.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ArrayValue {
    /// Values in the array.
    /// The order of values in an array is preserved as long as all values have
    /// identical settings for 'exclude_from_indexes'.
    #[prost(message, repeated, tag = "1")]
    pub values: ::prost::alloc::vec::Vec<Value>,
}
/// A message that can hold any of the supported value types and associated
/// metadata.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Value {
    /// The `meaning` field should only be populated for backwards compatibility.
    #[prost(int32, tag = "14")]
    pub meaning: i32,
    /// If the value should be excluded from all indexes including those defined
    /// explicitly.
    #[prost(bool, tag = "19")]
    pub exclude_from_indexes: bool,
    /// Must have a value set.
    #[prost(oneof = "value::ValueType", tags = "11, 1, 2, 3, 10, 5, 17, 18, 8, 6, 9")]
    pub value_type: ::core::option::Option<value::ValueType>,
}
/// Nested message and enum types in `Value`.
pub mod value {
    /// Must have a value set.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum ValueType {
        /// A null value.
        #[prost(enumeration = "::prost_types::NullValue", tag = "11")]
        NullValue(i32),
        /// A boolean value.
        #[prost(bool, tag = "1")]
        BooleanValue(bool),
        /// An integer value.
        #[prost(int64, tag = "2")]
        IntegerValue(i64),
        /// A double value.
        #[prost(double, tag = "3")]
        DoubleValue(f64),
        /// A timestamp value.
        /// When stored in the Datastore, precise only to microseconds;
        /// any additional precision is rounded down.
        #[prost(message, tag = "10")]
        TimestampValue(::prost_types::Timestamp),
        /// A key value.
        #[prost(message, tag = "5")]
        KeyValue(super::Key),
        /// A UTF-8 encoded string value.
        /// When `exclude_from_indexes` is false (it is indexed) , may have at most
        /// 1500 bytes. Otherwise, may be set to at most 1,000,000 bytes.
        #[prost(string, tag = "17")]
        StringValue(::prost::alloc::string::String),
        /// A blob value.
        /// May have at most 1,000,000 bytes.
        /// When `exclude_from_indexes` is false, may have at most 1500 bytes.
        /// In JSON requests, must be base64-encoded.
        #[prost(bytes, tag = "18")]
        BlobValue(::prost::bytes::Bytes),
        /// A geo point value representing a point on the surface of Earth.
        #[prost(message, tag = "8")]
        GeoPointValue(super::super::super::r#type::LatLng),
        /// An entity value.
        ///
        /// - May have no key.
        /// - May have a key with an incomplete key path.
        /// - May have a reserved/read-only key.
        #[prost(message, tag = "6")]
        EntityValue(super::Entity),
        /// An array value.
        /// Cannot contain another array value.
        /// A `Value` instance that sets field `array_value` must not set fields
        /// `meaning` or `exclude_from_indexes`.
        #[prost(message, tag = "9")]
        ArrayValue(super::ArrayValue),
    }
}
/// A Datastore data object.
///
/// Must not exceed 1 MiB - 4 bytes.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Entity {
    /// The entity's key.
    ///
    /// An entity must have a key, unless otherwise documented (for example,
    /// an entity in `Value.entity_value` may have no key).
    /// An entity's kind is its key path's last element's kind,
    /// or null if it has no key.
    #[prost(message, optional, tag = "1")]
    pub key: ::core::option::Option<Key>,
    /// The entity's properties.
    /// The map's keys are property names.
    /// A property name matching regex `__.*__` is reserved.
    /// A reserved property name is forbidden in certain documented contexts.
    /// The map keys, represented as UTF-8, must not exceed 1,500 bytes and cannot
    /// be empty.
    #[prost(btree_map = "string, message", tag = "3")]
    pub properties: ::prost::alloc::collections::BTreeMap<
        ::prost::alloc::string::String,
        Value,
    >,
}
/// The result of fetching an entity from Datastore.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct EntityResult {
    /// The resulting entity.
    #[prost(message, optional, tag = "1")]
    pub entity: ::core::option::Option<Entity>,
    /// The version of the entity, a strictly positive number that monotonically
    /// increases with changes to the entity.
    ///
    /// This field is set for
    /// [`FULL`][google.datastore.v1.EntityResult.ResultType.FULL] entity results.
    ///
    /// For [missing][google.datastore.v1.LookupResponse.missing] entities in
    /// `LookupResponse`, this is the version of the snapshot that was used to look
    /// up the entity, and it is always set except for eventually consistent reads.
    #[prost(int64, tag = "4")]
    pub version: i64,
    /// The time at which the entity was created.
    /// This field is set for
    /// [`FULL`][google.datastore.v1.EntityResult.ResultType.FULL] entity results.
    /// If this entity is missing, this field will not be set.
    #[prost(message, optional, tag = "6")]
    pub create_time: ::core::option::Option<::prost_types::Timestamp>,
    /// The time at which the entity was last changed.
    /// This field is set for
    /// [`FULL`][google.datastore.v1.EntityResult.ResultType.FULL] entity results.
    /// If this entity is missing, this field will not be set.
    #[prost(message, optional, tag = "5")]
    pub update_time: ::core::option::Option<::prost_types::Timestamp>,
    /// A cursor that points to the position after the result entity.
    /// Set only when the `EntityResult` is part of a `QueryResultBatch` message.
    #[prost(bytes = "bytes", tag = "3")]
    pub cursor: ::prost::bytes::Bytes,
}
/// Nested message and enum types in `EntityResult`.
pub mod entity_result {
    /// Specifies what data the 'entity' field contains.
    /// A `ResultType` is either implied (for example, in `LookupResponse.missing`
    /// from `datastore.proto`, it is always `KEY_ONLY`) or specified by context
    /// (for example, in message `QueryResultBatch`, field `entity_result_type`
    /// specifies a `ResultType` for all the values in field `entity_results`).
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum ResultType {
        /// Unspecified. This value is never used.
        Unspecified = 0,
        /// The key and properties.
        Full = 1,
        /// A projected subset of properties. The entity may have no key.
        Projection = 2,
        /// Only the key.
        KeyOnly = 3,
    }
    impl ResultType {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                ResultType::Unspecified => "RESULT_TYPE_UNSPECIFIED",
                ResultType::Full => "FULL",
                ResultType::Projection => "PROJECTION",
                ResultType::KeyOnly => "KEY_ONLY",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "RESULT_TYPE_UNSPECIFIED" => Some(Self::Unspecified),
                "FULL" => Some(Self::Full),
                "PROJECTION" => Some(Self::Projection),
                "KEY_ONLY" => Some(Self::KeyOnly),
                _ => None,
            }
        }
    }
}
/// A query for entities.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Query {
    /// The projection to return. Defaults to returning all properties.
    #[prost(message, repeated, tag = "2")]
    pub projection: ::prost::alloc::vec::Vec<Projection>,
    /// The kinds to query (if empty, returns entities of all kinds).
    /// Currently at most 1 kind may be specified.
    #[prost(message, repeated, tag = "3")]
    pub kind: ::prost::alloc::vec::Vec<KindExpression>,
    /// The filter to apply.
    #[prost(message, optional, tag = "4")]
    pub filter: ::core::option::Option<Filter>,
    /// The order to apply to the query results (if empty, order is unspecified).
    #[prost(message, repeated, tag = "5")]
    pub order: ::prost::alloc::vec::Vec<PropertyOrder>,
    /// The properties to make distinct. The query results will contain the first
    /// result for each distinct combination of values for the given properties
    /// (if empty, all results are returned).
    ///
    /// Requires:
    ///
    /// * If `order` is specified, the set of distinct on properties must appear
    /// before the non-distinct on properties in `order`.
    #[prost(message, repeated, tag = "6")]
    pub distinct_on: ::prost::alloc::vec::Vec<PropertyReference>,
    /// A starting point for the query results. Query cursors are
    /// returned in query result batches and
    /// [can only be used to continue the same
    /// query](<https://cloud.google.com/datastore/docs/concepts/queries#cursors_limits_and_offsets>).
    #[prost(bytes = "bytes", tag = "7")]
    pub start_cursor: ::prost::bytes::Bytes,
    /// An ending point for the query results. Query cursors are
    /// returned in query result batches and
    /// [can only be used to limit the same
    /// query](<https://cloud.google.com/datastore/docs/concepts/queries#cursors_limits_and_offsets>).
    #[prost(bytes = "bytes", tag = "8")]
    pub end_cursor: ::prost::bytes::Bytes,
    /// The number of results to skip. Applies before limit, but after all other
    /// constraints. Optional. Must be >= 0 if specified.
    #[prost(int32, tag = "10")]
    pub offset: i32,
    /// The maximum number of results to return. Applies after all other
    /// constraints. Optional.
    /// Unspecified is interpreted as no limit.
    /// Must be >= 0 if specified.
    #[prost(message, optional, tag = "12")]
    pub limit: ::core::option::Option<i32>,
}
/// Datastore query for running an aggregation over a
/// [Query][google.datastore.v1.Query].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AggregationQuery {
    /// Optional. Series of aggregations to apply over the results of the
    /// `nested_query`.
    ///
    /// Requires:
    ///
    /// * A minimum of one and maximum of five aggregations per query.
    #[prost(message, repeated, tag = "3")]
    pub aggregations: ::prost::alloc::vec::Vec<aggregation_query::Aggregation>,
    /// The base query to aggregate over.
    #[prost(oneof = "aggregation_query::QueryType", tags = "1")]
    pub query_type: ::core::option::Option<aggregation_query::QueryType>,
}
/// Nested message and enum types in `AggregationQuery`.
pub mod aggregation_query {
    /// Defines an aggregation that produces a single result.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct Aggregation {
        /// Optional. Optional name of the property to store the result of the
        /// aggregation.
        ///
        /// If not provided, Datastore will pick a default name following the format
        /// `property_<incremental_id++>`. For example:
        ///
        /// ```
        /// AGGREGATE
        ///    COUNT_UP_TO(1) AS count_up_to_1,
        ///    COUNT_UP_TO(2),
        ///    COUNT_UP_TO(3) AS count_up_to_3,
        ///    COUNT(*)
        /// OVER (
        ///    ...
        /// );
        /// ```
        ///
        /// becomes:
        ///
        /// ```
        /// AGGREGATE
        ///    COUNT_UP_TO(1) AS count_up_to_1,
        ///    COUNT_UP_TO(2) AS property_1,
        ///    COUNT_UP_TO(3) AS count_up_to_3,
        ///    COUNT(*) AS property_2
        /// OVER (
        ///    ...
        /// );
        /// ```
        ///
        /// Requires:
        ///
        /// * Must be unique across all aggregation aliases.
        /// * Conform to [entity property
        /// name][google.datastore.v1.Entity.properties] limitations.
        #[prost(string, tag = "7")]
        pub alias: ::prost::alloc::string::String,
        /// The type of aggregation to perform, required.
        #[prost(oneof = "aggregation::Operator", tags = "1, 2, 3")]
        pub operator: ::core::option::Option<aggregation::Operator>,
    }
    /// Nested message and enum types in `Aggregation`.
    pub mod aggregation {
        /// Count of entities that match the query.
        ///
        /// The `COUNT(*)` aggregation function operates on the entire entity
        /// so it does not require a field reference.
        #[allow(clippy::derive_partial_eq_without_eq)]
        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct Count {
            /// Optional. Optional constraint on the maximum number of entities to
            /// count.
            ///
            /// This provides a way to set an upper bound on the number of entities
            /// to scan, limiting latency, and cost.
            ///
            /// Unspecified is interpreted as no bound.
            ///
            /// If a zero value is provided, a count result of zero should always be
            /// expected.
            ///
            /// High-Level Example:
            ///
            /// ```
            /// AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );
            /// ```
            ///
            /// Requires:
            ///
            /// * Must be non-negative when present.
            #[prost(message, optional, tag = "1")]
            pub up_to: ::core::option::Option<i64>,
        }
        /// Sum of the values of the requested property.
        ///
        /// * Only numeric values will be aggregated. All non-numeric values
        /// including `NULL` are skipped.
        ///
        /// * If the aggregated values contain `NaN`, returns `NaN`. Infinity math
        /// follows IEEE-754 standards.
        ///
        /// * If the aggregated value set is empty, returns 0.
        ///
        /// * Returns a 64-bit integer if all aggregated numbers are integers and the
        /// sum result does not overflow. Otherwise, the result is returned as a
        /// double. Note that even if all the aggregated values are integers, the
        /// result is returned as a double if it cannot fit within a 64-bit signed
        /// integer. When this occurs, the returned value will lose precision.
        ///
        /// * When underflow occurs, floating-point aggregation is non-deterministic.
        /// This means that running the same query repeatedly without any changes to
        /// the underlying values could produce slightly different results each
        /// time. In those cases, values should be stored as integers over
        /// floating-point numbers.
        #[allow(clippy::derive_partial_eq_without_eq)]
        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct Sum {
            /// The property to aggregate on.
            #[prost(message, optional, tag = "1")]
            pub property: ::core::option::Option<super::super::PropertyReference>,
        }
        /// Average of the values of the requested property.
        ///
        /// * Only numeric values will be aggregated. All non-numeric values
        /// including `NULL` are skipped.
        ///
        /// * If the aggregated values contain `NaN`, returns `NaN`. Infinity math
        /// follows IEEE-754 standards.
        ///
        /// * If the aggregated value set is empty, returns `NULL`.
        ///
        /// * Always returns the result as a double.
        #[allow(clippy::derive_partial_eq_without_eq)]
        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct Avg {
            /// The property to aggregate on.
            #[prost(message, optional, tag = "1")]
            pub property: ::core::option::Option<super::super::PropertyReference>,
        }
        /// The type of aggregation to perform, required.
        #[allow(clippy::derive_partial_eq_without_eq)]
        #[derive(Clone, PartialEq, ::prost::Oneof)]
        pub enum Operator {
            /// Count aggregator.
            #[prost(message, tag = "1")]
            Count(Count),
            /// Sum aggregator.
            #[prost(message, tag = "2")]
            Sum(Sum),
            /// Average aggregator.
            #[prost(message, tag = "3")]
            Avg(Avg),
        }
    }
    /// The base query to aggregate over.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum QueryType {
        /// Nested query for aggregation
        #[prost(message, tag = "1")]
        NestedQuery(super::Query),
    }
}
/// A representation of a kind.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct KindExpression {
    /// The name of the kind.
    #[prost(string, tag = "1")]
    pub name: ::prost::alloc::string::String,
}
/// A reference to a property relative to the kind expressions.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct PropertyReference {
    /// A reference to a property.
    ///
    /// Requires:
    ///
    /// * MUST be a dot-delimited (`.`) string of segments, where each segment
    /// conforms to [entity property name][google.datastore.v1.Entity.properties]
    /// limitations.
    #[prost(string, tag = "2")]
    pub name: ::prost::alloc::string::String,
}
/// A representation of a property in a projection.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Projection {
    /// The property to project.
    #[prost(message, optional, tag = "1")]
    pub property: ::core::option::Option<PropertyReference>,
}
/// The desired order for a specific property.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct PropertyOrder {
    /// The property to order by.
    #[prost(message, optional, tag = "1")]
    pub property: ::core::option::Option<PropertyReference>,
    /// The direction to order by. Defaults to `ASCENDING`.
    #[prost(enumeration = "property_order::Direction", tag = "2")]
    pub direction: i32,
}
/// Nested message and enum types in `PropertyOrder`.
pub mod property_order {
    /// The sort direction.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum Direction {
        /// Unspecified. This value must not be used.
        Unspecified = 0,
        /// Ascending.
        Ascending = 1,
        /// Descending.
        Descending = 2,
    }
    impl Direction {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                Direction::Unspecified => "DIRECTION_UNSPECIFIED",
                Direction::Ascending => "ASCENDING",
                Direction::Descending => "DESCENDING",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "DIRECTION_UNSPECIFIED" => Some(Self::Unspecified),
                "ASCENDING" => Some(Self::Ascending),
                "DESCENDING" => Some(Self::Descending),
                _ => None,
            }
        }
    }
}
/// A holder for any type of filter.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Filter {
    /// The type of filter.
    #[prost(oneof = "filter::FilterType", tags = "1, 2")]
    pub filter_type: ::core::option::Option<filter::FilterType>,
}
/// Nested message and enum types in `Filter`.
pub mod filter {
    /// The type of filter.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum FilterType {
        /// A composite filter.
        #[prost(message, tag = "1")]
        CompositeFilter(super::CompositeFilter),
        /// A filter on a property.
        #[prost(message, tag = "2")]
        PropertyFilter(super::PropertyFilter),
    }
}
/// A filter that merges multiple other filters using the given operator.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct CompositeFilter {
    /// The operator for combining multiple filters.
    #[prost(enumeration = "composite_filter::Operator", tag = "1")]
    pub op: i32,
    /// The list of filters to combine.
    ///
    /// Requires:
    ///
    /// * At least one filter is present.
    #[prost(message, repeated, tag = "2")]
    pub filters: ::prost::alloc::vec::Vec<Filter>,
}
/// Nested message and enum types in `CompositeFilter`.
pub mod composite_filter {
    /// A composite filter operator.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum Operator {
        /// Unspecified. This value must not be used.
        Unspecified = 0,
        /// The results are required to satisfy each of the combined filters.
        And = 1,
        /// Documents are required to satisfy at least one of the combined filters.
        Or = 2,
    }
    impl Operator {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                Operator::Unspecified => "OPERATOR_UNSPECIFIED",
                Operator::And => "AND",
                Operator::Or => "OR",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "OPERATOR_UNSPECIFIED" => Some(Self::Unspecified),
                "AND" => Some(Self::And),
                "OR" => Some(Self::Or),
                _ => None,
            }
        }
    }
}
/// A filter on a specific property.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct PropertyFilter {
    /// The property to filter by.
    #[prost(message, optional, tag = "1")]
    pub property: ::core::option::Option<PropertyReference>,
    /// The operator to filter by.
    #[prost(enumeration = "property_filter::Operator", tag = "2")]
    pub op: i32,
    /// The value to compare the property to.
    #[prost(message, optional, tag = "3")]
    pub value: ::core::option::Option<Value>,
}
/// Nested message and enum types in `PropertyFilter`.
pub mod property_filter {
    /// A property filter operator.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum Operator {
        /// Unspecified. This value must not be used.
        Unspecified = 0,
        /// The given `property` is less than the given `value`.
        ///
        /// Requires:
        ///
        /// * That `property` comes first in `order_by`.
        LessThan = 1,
        /// The given `property` is less than or equal to the given `value`.
        ///
        /// Requires:
        ///
        /// * That `property` comes first in `order_by`.
        LessThanOrEqual = 2,
        /// The given `property` is greater than the given `value`.
        ///
        /// Requires:
        ///
        /// * That `property` comes first in `order_by`.
        GreaterThan = 3,
        /// The given `property` is greater than or equal to the given `value`.
        ///
        /// Requires:
        ///
        /// * That `property` comes first in `order_by`.
        GreaterThanOrEqual = 4,
        /// The given `property` is equal to the given `value`.
        Equal = 5,
        /// The given `property` is equal to at least one value in the given array.
        ///
        /// Requires:
        ///
        /// * That `value` is a non-empty `ArrayValue`, subject to disjunction
        ///    limits.
        /// * No `NOT_IN` is in the same query.
        In = 6,
        /// The given `property` is not equal to the given `value`.
        ///
        /// Requires:
        ///
        /// * No other `NOT_EQUAL` or `NOT_IN` is in the same query.
        /// * That `property` comes first in the `order_by`.
        NotEqual = 9,
        /// Limit the result set to the given entity and its descendants.
        ///
        /// Requires:
        ///
        /// * That `value` is an entity key.
        /// * All evaluated disjunctions must have the same `HAS_ANCESTOR` filter.
        HasAncestor = 11,
        /// The value of the `property` is not in the given array.
        ///
        /// Requires:
        ///
        /// * That `value` is a non-empty `ArrayValue` with at most 10 values.
        /// * No other `OR`, `IN`, `NOT_IN`, `NOT_EQUAL` is in the same query.
        /// * That `field` comes first in the `order_by`.
        NotIn = 13,
    }
    impl Operator {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                Operator::Unspecified => "OPERATOR_UNSPECIFIED",
                Operator::LessThan => "LESS_THAN",
                Operator::LessThanOrEqual => "LESS_THAN_OR_EQUAL",
                Operator::GreaterThan => "GREATER_THAN",
                Operator::GreaterThanOrEqual => "GREATER_THAN_OR_EQUAL",
                Operator::Equal => "EQUAL",
                Operator::In => "IN",
                Operator::NotEqual => "NOT_EQUAL",
                Operator::HasAncestor => "HAS_ANCESTOR",
                Operator::NotIn => "NOT_IN",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "OPERATOR_UNSPECIFIED" => Some(Self::Unspecified),
                "LESS_THAN" => Some(Self::LessThan),
                "LESS_THAN_OR_EQUAL" => Some(Self::LessThanOrEqual),
                "GREATER_THAN" => Some(Self::GreaterThan),
                "GREATER_THAN_OR_EQUAL" => Some(Self::GreaterThanOrEqual),
                "EQUAL" => Some(Self::Equal),
                "IN" => Some(Self::In),
                "NOT_EQUAL" => Some(Self::NotEqual),
                "HAS_ANCESTOR" => Some(Self::HasAncestor),
                "NOT_IN" => Some(Self::NotIn),
                _ => None,
            }
        }
    }
}
/// A [GQL
/// query](<https://cloud.google.com/datastore/docs/apis/gql/gql_reference>).
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct GqlQuery {
    /// A string of the format described
    /// [here](<https://cloud.google.com/datastore/docs/apis/gql/gql_reference>).
    #[prost(string, tag = "1")]
    pub query_string: ::prost::alloc::string::String,
    /// When false, the query string must not contain any literals and instead must
    /// bind all values. For example,
    /// `SELECT * FROM Kind WHERE a = 'string literal'` is not allowed, while
    /// `SELECT * FROM Kind WHERE a = @value` is.
    #[prost(bool, tag = "2")]
    pub allow_literals: bool,
    /// For each non-reserved named binding site in the query string, there must be
    /// a named parameter with that name, but not necessarily the inverse.
    ///
    /// Key must match regex `[A-Za-z_$][A-Za-z_$0-9]*`, must not match regex
    /// `__.*__`, and must not be `""`.
    #[prost(btree_map = "string, message", tag = "5")]
    pub named_bindings: ::prost::alloc::collections::BTreeMap<
        ::prost::alloc::string::String,
        GqlQueryParameter,
    >,
    /// Numbered binding site @1 references the first numbered parameter,
    /// effectively using 1-based indexing, rather than the usual 0.
    ///
    /// For each binding site numbered i in `query_string`, there must be an i-th
    /// numbered parameter. The inverse must also be true.
    #[prost(message, repeated, tag = "4")]
    pub positional_bindings: ::prost::alloc::vec::Vec<GqlQueryParameter>,
}
/// A binding parameter for a GQL query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct GqlQueryParameter {
    /// The type of parameter.
    #[prost(oneof = "gql_query_parameter::ParameterType", tags = "2, 3")]
    pub parameter_type: ::core::option::Option<gql_query_parameter::ParameterType>,
}
/// Nested message and enum types in `GqlQueryParameter`.
pub mod gql_query_parameter {
    /// The type of parameter.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum ParameterType {
        /// A value parameter.
        #[prost(message, tag = "2")]
        Value(super::Value),
        /// A query cursor. Query cursors are returned in query
        /// result batches.
        #[prost(bytes, tag = "3")]
        Cursor(::prost::bytes::Bytes),
    }
}
/// A batch of results produced by a query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct QueryResultBatch {
    /// The number of results skipped, typically because of an offset.
    #[prost(int32, tag = "6")]
    pub skipped_results: i32,
    /// A cursor that points to the position after the last skipped result.
    /// Will be set when `skipped_results` != 0.
    #[prost(bytes = "bytes", tag = "3")]
    pub skipped_cursor: ::prost::bytes::Bytes,
    /// The result type for every entity in `entity_results`.
    #[prost(enumeration = "entity_result::ResultType", tag = "1")]
    pub entity_result_type: i32,
    /// The results for this batch.
    #[prost(message, repeated, tag = "2")]
    pub entity_results: ::prost::alloc::vec::Vec<EntityResult>,
    /// A cursor that points to the position after the last result in the batch.
    #[prost(bytes = "bytes", tag = "4")]
    pub end_cursor: ::prost::bytes::Bytes,
    /// The state of the query after the current batch.
    #[prost(enumeration = "query_result_batch::MoreResultsType", tag = "5")]
    pub more_results: i32,
    /// The version number of the snapshot this batch was returned from.
    /// This applies to the range of results from the query's `start_cursor` (or
    /// the beginning of the query if no cursor was given) to this batch's
    /// `end_cursor` (not the query's `end_cursor`).
    ///
    /// In a single transaction, subsequent query result batches for the same query
    /// can have a greater snapshot version number. Each batch's snapshot version
    /// is valid for all preceding batches.
    /// The value will be zero for eventually consistent queries.
    #[prost(int64, tag = "7")]
    pub snapshot_version: i64,
    /// Read timestamp this batch was returned from.
    /// This applies to the range of results from the query's `start_cursor` (or
    /// the beginning of the query if no cursor was given) to this batch's
    /// `end_cursor` (not the query's `end_cursor`).
    ///
    /// In a single transaction, subsequent query result batches for the same query
    /// can have a greater timestamp. Each batch's read timestamp
    /// is valid for all preceding batches.
    /// This value will not be set for eventually consistent queries in Cloud
    /// Datastore.
    #[prost(message, optional, tag = "8")]
    pub read_time: ::core::option::Option<::prost_types::Timestamp>,
}
/// Nested message and enum types in `QueryResultBatch`.
pub mod query_result_batch {
    /// The possible values for the `more_results` field.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum MoreResultsType {
        /// Unspecified. This value is never used.
        Unspecified = 0,
        /// There may be additional batches to fetch from this query.
        NotFinished = 1,
        /// The query is finished, but there may be more results after the limit.
        MoreResultsAfterLimit = 2,
        /// The query is finished, but there may be more results after the end
        /// cursor.
        MoreResultsAfterCursor = 4,
        /// The query is finished, and there are no more results.
        NoMoreResults = 3,
    }
    impl MoreResultsType {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                MoreResultsType::Unspecified => "MORE_RESULTS_TYPE_UNSPECIFIED",
                MoreResultsType::NotFinished => "NOT_FINISHED",
                MoreResultsType::MoreResultsAfterLimit => "MORE_RESULTS_AFTER_LIMIT",
                MoreResultsType::MoreResultsAfterCursor => "MORE_RESULTS_AFTER_CURSOR",
                MoreResultsType::NoMoreResults => "NO_MORE_RESULTS",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "MORE_RESULTS_TYPE_UNSPECIFIED" => Some(Self::Unspecified),
                "NOT_FINISHED" => Some(Self::NotFinished),
                "MORE_RESULTS_AFTER_LIMIT" => Some(Self::MoreResultsAfterLimit),
                "MORE_RESULTS_AFTER_CURSOR" => Some(Self::MoreResultsAfterCursor),
                "NO_MORE_RESULTS" => Some(Self::NoMoreResults),
                _ => None,
            }
        }
    }
}
/// The result of a single bucket from a Datastore aggregation query.
///
/// The keys of `aggregate_properties` are the same for all results in an
/// aggregation query, unlike entity queries which can have different fields
/// present for each result.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AggregationResult {
    /// The result of the aggregation functions, ex: `COUNT(*) AS total_entities`.
    ///
    /// The key is the
    /// [alias][google.datastore.v1.AggregationQuery.Aggregation.alias] assigned to
    /// the aggregation function on input and the size of this map equals the
    /// number of aggregation functions in the query.
    #[prost(btree_map = "string, message", tag = "2")]
    pub aggregate_properties: ::prost::alloc::collections::BTreeMap<
        ::prost::alloc::string::String,
        Value,
    >,
}
/// A batch of aggregation results produced by an aggregation query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AggregationResultBatch {
    /// The aggregation results for this batch.
    #[prost(message, repeated, tag = "1")]
    pub aggregation_results: ::prost::alloc::vec::Vec<AggregationResult>,
    /// The state of the query after the current batch.
    /// Only COUNT(*) aggregations are supported in the initial launch. Therefore,
    /// expected result type is limited to `NO_MORE_RESULTS`.
    #[prost(enumeration = "query_result_batch::MoreResultsType", tag = "2")]
    pub more_results: i32,
    /// Read timestamp this batch was returned from.
    ///
    /// In a single transaction, subsequent query result batches for the same query
    /// can have a greater timestamp. Each batch's read timestamp
    /// is valid for all preceding batches.
    #[prost(message, optional, tag = "3")]
    pub read_time: ::core::option::Option<::prost_types::Timestamp>,
}
/// Explain options for the query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ExplainOptions {
    /// Optional. Whether to execute this query.
    ///
    /// When false (the default), the query will be planned, returning only
    /// metrics from the planning stages.
    ///
    /// When true, the query will be planned and executed, returning the full
    /// query results along with both planning and execution stage metrics.
    #[prost(bool, tag = "1")]
    pub analyze: bool,
}
/// Explain metrics for the query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ExplainMetrics {
    /// Planning phase information for the query.
    #[prost(message, optional, tag = "1")]
    pub plan_summary: ::core::option::Option<PlanSummary>,
    /// Aggregated stats from the execution of the query. Only present when
    /// [ExplainOptions.analyze][google.datastore.v1.ExplainOptions.analyze] is set
    /// to true.
    #[prost(message, optional, tag = "2")]
    pub execution_stats: ::core::option::Option<ExecutionStats>,
}
/// Planning phase information for the query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct PlanSummary {
    /// The indexes selected for the query. For example:
    ///   [
    ///     {"query_scope": "Collection", "properties": "(foo ASC, __name__ ASC)"},
    ///     {"query_scope": "Collection", "properties": "(bar ASC, __name__ ASC)"}
    ///   ]
    #[prost(message, repeated, tag = "1")]
    pub indexes_used: ::prost::alloc::vec::Vec<::prost_types::Struct>,
}
/// Execution statistics for the query.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ExecutionStats {
    /// Total number of results returned, including documents, projections,
    /// aggregation results, keys.
    #[prost(int64, tag = "1")]
    pub results_returned: i64,
    /// Total time to execute the query in the backend.
    #[prost(message, optional, tag = "3")]
    pub execution_duration: ::core::option::Option<::prost_types::Duration>,
    /// Total billable read operations.
    #[prost(int64, tag = "4")]
    pub read_operations: i64,
    /// Debugging statistics from the execution of the query. Note that the
    /// debugging stats are subject to change as Firestore evolves. It could
    /// include:
    ///   {
    ///     "indexes_entries_scanned": "1000",
    ///     "documents_scanned": "20",
    ///     "billing_details" : {
    ///        "documents_billable": "20",
    ///        "index_entries_billable": "1000",
    ///        "min_query_cost": "0"
    ///     }
    ///   }
    #[prost(message, optional, tag = "5")]
    pub debug_stats: ::core::option::Option<::prost_types::Struct>,
}
/// The request for [Datastore.Lookup][google.datastore.v1.Datastore.Lookup].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct LookupRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// The options for this lookup request.
    #[prost(message, optional, tag = "1")]
    pub read_options: ::core::option::Option<ReadOptions>,
    /// Required. Keys of entities to look up.
    #[prost(message, repeated, tag = "3")]
    pub keys: ::prost::alloc::vec::Vec<Key>,
}
/// The response for [Datastore.Lookup][google.datastore.v1.Datastore.Lookup].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct LookupResponse {
    /// Entities found as `ResultType.FULL` entities. The order of results in this
    /// field is undefined and has no relation to the order of the keys in the
    /// input.
    #[prost(message, repeated, tag = "1")]
    pub found: ::prost::alloc::vec::Vec<EntityResult>,
    /// Entities not found as `ResultType.KEY_ONLY` entities. The order of results
    /// in this field is undefined and has no relation to the order of the keys
    /// in the input.
    #[prost(message, repeated, tag = "2")]
    pub missing: ::prost::alloc::vec::Vec<EntityResult>,
    /// A list of keys that were not looked up due to resource constraints. The
    /// order of results in this field is undefined and has no relation to the
    /// order of the keys in the input.
    #[prost(message, repeated, tag = "3")]
    pub deferred: ::prost::alloc::vec::Vec<Key>,
    /// The identifier of the transaction that was started as part of this Lookup
    /// request.
    ///
    /// Set only when
    /// [ReadOptions.new_transaction][google.datastore.v1.ReadOptions.new_transaction]
    /// was set in
    /// [LookupRequest.read_options][google.datastore.v1.LookupRequest.read_options].
    #[prost(bytes = "bytes", tag = "5")]
    pub transaction: ::prost::bytes::Bytes,
    /// The time at which these entities were read or found missing.
    #[prost(message, optional, tag = "7")]
    pub read_time: ::core::option::Option<::prost_types::Timestamp>,
}
/// The request for [Datastore.RunQuery][google.datastore.v1.Datastore.RunQuery].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RunQueryRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Entities are partitioned into subsets, identified by a partition ID.
    /// Queries are scoped to a single partition.
    /// This partition ID is normalized with the standard default context
    /// partition ID.
    #[prost(message, optional, tag = "2")]
    pub partition_id: ::core::option::Option<PartitionId>,
    /// The options for this query.
    #[prost(message, optional, tag = "1")]
    pub read_options: ::core::option::Option<ReadOptions>,
    /// Optional. Explain options for the query. If set, additional query
    /// statistics will be returned. If not, only query results will be returned.
    #[prost(message, optional, tag = "12")]
    pub explain_options: ::core::option::Option<ExplainOptions>,
    /// The type of query.
    #[prost(oneof = "run_query_request::QueryType", tags = "3, 7")]
    pub query_type: ::core::option::Option<run_query_request::QueryType>,
}
/// Nested message and enum types in `RunQueryRequest`.
pub mod run_query_request {
    /// The type of query.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum QueryType {
        /// The query to run.
        #[prost(message, tag = "3")]
        Query(super::Query),
        /// The GQL query to run. This query must be a non-aggregation query.
        #[prost(message, tag = "7")]
        GqlQuery(super::GqlQuery),
    }
}
/// The response for
/// [Datastore.RunQuery][google.datastore.v1.Datastore.RunQuery].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RunQueryResponse {
    /// A batch of query results (always present).
    #[prost(message, optional, tag = "1")]
    pub batch: ::core::option::Option<QueryResultBatch>,
    /// The parsed form of the `GqlQuery` from the request, if it was set.
    #[prost(message, optional, tag = "2")]
    pub query: ::core::option::Option<Query>,
    /// The identifier of the transaction that was started as part of this
    /// RunQuery request.
    ///
    /// Set only when
    /// [ReadOptions.new_transaction][google.datastore.v1.ReadOptions.new_transaction]
    /// was set in
    /// [RunQueryRequest.read_options][google.datastore.v1.RunQueryRequest.read_options].
    #[prost(bytes = "bytes", tag = "5")]
    pub transaction: ::prost::bytes::Bytes,
    /// Query explain metrics. This is only present when the
    /// [RunQueryRequest.explain_options][google.datastore.v1.RunQueryRequest.explain_options]
    /// is provided, and it is sent only once with the last response in the stream.
    #[prost(message, optional, tag = "9")]
    pub explain_metrics: ::core::option::Option<ExplainMetrics>,
}
/// The request for
/// [Datastore.RunAggregationQuery][google.datastore.v1.Datastore.RunAggregationQuery].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RunAggregationQueryRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Entities are partitioned into subsets, identified by a partition ID.
    /// Queries are scoped to a single partition.
    /// This partition ID is normalized with the standard default context
    /// partition ID.
    #[prost(message, optional, tag = "2")]
    pub partition_id: ::core::option::Option<PartitionId>,
    /// The options for this query.
    #[prost(message, optional, tag = "1")]
    pub read_options: ::core::option::Option<ReadOptions>,
    /// Optional. Explain options for the query. If set, additional query
    /// statistics will be returned. If not, only query results will be returned.
    #[prost(message, optional, tag = "11")]
    pub explain_options: ::core::option::Option<ExplainOptions>,
    /// The type of query.
    #[prost(oneof = "run_aggregation_query_request::QueryType", tags = "3, 7")]
    pub query_type: ::core::option::Option<run_aggregation_query_request::QueryType>,
}
/// Nested message and enum types in `RunAggregationQueryRequest`.
pub mod run_aggregation_query_request {
    /// The type of query.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum QueryType {
        /// The query to run.
        #[prost(message, tag = "3")]
        AggregationQuery(super::AggregationQuery),
        /// The GQL query to run. This query must be an aggregation query.
        #[prost(message, tag = "7")]
        GqlQuery(super::GqlQuery),
    }
}
/// The response for
/// [Datastore.RunAggregationQuery][google.datastore.v1.Datastore.RunAggregationQuery].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RunAggregationQueryResponse {
    /// A batch of aggregation results. Always present.
    #[prost(message, optional, tag = "1")]
    pub batch: ::core::option::Option<AggregationResultBatch>,
    /// The parsed form of the `GqlQuery` from the request, if it was set.
    #[prost(message, optional, tag = "2")]
    pub query: ::core::option::Option<AggregationQuery>,
    /// The identifier of the transaction that was started as part of this
    /// RunAggregationQuery request.
    ///
    /// Set only when
    /// [ReadOptions.new_transaction][google.datastore.v1.ReadOptions.new_transaction]
    /// was set in
    /// [RunAggregationQueryRequest.read_options][google.datastore.v1.RunAggregationQueryRequest.read_options].
    #[prost(bytes = "bytes", tag = "5")]
    pub transaction: ::prost::bytes::Bytes,
    /// Query explain metrics. This is only present when the
    /// [RunAggregationQueryRequest.explain_options][google.datastore.v1.RunAggregationQueryRequest.explain_options]
    /// is provided, and it is sent only once with the last response in the stream.
    #[prost(message, optional, tag = "9")]
    pub explain_metrics: ::core::option::Option<ExplainMetrics>,
}
/// The request for
/// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct BeginTransactionRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Options for a new transaction.
    #[prost(message, optional, tag = "10")]
    pub transaction_options: ::core::option::Option<TransactionOptions>,
}
/// The response for
/// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct BeginTransactionResponse {
    /// The transaction identifier (always present).
    #[prost(bytes = "bytes", tag = "1")]
    pub transaction: ::prost::bytes::Bytes,
}
/// The request for [Datastore.Rollback][google.datastore.v1.Datastore.Rollback].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RollbackRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Required. The transaction identifier, returned by a call to
    /// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction].
    #[prost(bytes = "bytes", tag = "1")]
    pub transaction: ::prost::bytes::Bytes,
}
/// The response for
/// [Datastore.Rollback][google.datastore.v1.Datastore.Rollback]. (an empty
/// message).
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RollbackResponse {}
/// The request for [Datastore.Commit][google.datastore.v1.Datastore.Commit].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct CommitRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// The type of commit to perform. Defaults to `TRANSACTIONAL`.
    #[prost(enumeration = "commit_request::Mode", tag = "5")]
    pub mode: i32,
    /// The mutations to perform.
    ///
    /// When mode is `TRANSACTIONAL`, mutations affecting a single entity are
    /// applied in order. The following sequences of mutations affecting a single
    /// entity are not permitted in a single `Commit` request:
    ///
    /// - `insert` followed by `insert`
    /// - `update` followed by `insert`
    /// - `upsert` followed by `insert`
    /// - `delete` followed by `update`
    ///
    /// When mode is `NON_TRANSACTIONAL`, no two mutations may affect a single
    /// entity.
    #[prost(message, repeated, tag = "6")]
    pub mutations: ::prost::alloc::vec::Vec<Mutation>,
    /// Must be set when mode is `TRANSACTIONAL`.
    #[prost(oneof = "commit_request::TransactionSelector", tags = "1, 10")]
    pub transaction_selector: ::core::option::Option<
        commit_request::TransactionSelector,
    >,
}
/// Nested message and enum types in `CommitRequest`.
pub mod commit_request {
    /// The modes available for commits.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum Mode {
        /// Unspecified. This value must not be used.
        Unspecified = 0,
        /// Transactional: The mutations are either all applied, or none are applied.
        /// Learn about transactions
        /// [here](<https://cloud.google.com/datastore/docs/concepts/transactions>).
        Transactional = 1,
        /// Non-transactional: The mutations may not apply as all or none.
        NonTransactional = 2,
    }
    impl Mode {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                Mode::Unspecified => "MODE_UNSPECIFIED",
                Mode::Transactional => "TRANSACTIONAL",
                Mode::NonTransactional => "NON_TRANSACTIONAL",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "MODE_UNSPECIFIED" => Some(Self::Unspecified),
                "TRANSACTIONAL" => Some(Self::Transactional),
                "NON_TRANSACTIONAL" => Some(Self::NonTransactional),
                _ => None,
            }
        }
    }
    /// Must be set when mode is `TRANSACTIONAL`.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum TransactionSelector {
        /// The identifier of the transaction associated with the commit. A
        /// transaction identifier is returned by a call to
        /// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction].
        #[prost(bytes, tag = "1")]
        Transaction(::prost::bytes::Bytes),
        /// Options for beginning a new transaction for this request.
        /// The transaction is committed when the request completes. If specified,
        /// [TransactionOptions.mode][google.datastore.v1.TransactionOptions] must be
        /// [TransactionOptions.ReadWrite][google.datastore.v1.TransactionOptions.ReadWrite].
        #[prost(message, tag = "10")]
        SingleUseTransaction(super::TransactionOptions),
    }
}
/// The response for [Datastore.Commit][google.datastore.v1.Datastore.Commit].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct CommitResponse {
    /// The result of performing the mutations.
    /// The i-th mutation result corresponds to the i-th mutation in the request.
    #[prost(message, repeated, tag = "3")]
    pub mutation_results: ::prost::alloc::vec::Vec<MutationResult>,
    /// The number of index entries updated during the commit, or zero if none were
    /// updated.
    #[prost(int32, tag = "4")]
    pub index_updates: i32,
    /// The transaction commit timestamp. Not set for non-transactional commits.
    #[prost(message, optional, tag = "8")]
    pub commit_time: ::core::option::Option<::prost_types::Timestamp>,
}
/// The request for
/// [Datastore.AllocateIds][google.datastore.v1.Datastore.AllocateIds].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AllocateIdsRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Required. A list of keys with incomplete key paths for which to allocate
    /// IDs. No key may be reserved/read-only.
    #[prost(message, repeated, tag = "1")]
    pub keys: ::prost::alloc::vec::Vec<Key>,
}
/// The response for
/// [Datastore.AllocateIds][google.datastore.v1.Datastore.AllocateIds].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AllocateIdsResponse {
    /// The keys specified in the request (in the same order), each with
    /// its key path completed with a newly allocated ID.
    #[prost(message, repeated, tag = "1")]
    pub keys: ::prost::alloc::vec::Vec<Key>,
}
/// The request for
/// [Datastore.ReserveIds][google.datastore.v1.Datastore.ReserveIds].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ReserveIdsRequest {
    /// Required. The ID of the project against which to make the request.
    #[prost(string, tag = "8")]
    pub project_id: ::prost::alloc::string::String,
    /// The ID of the database against which to make the request.
    ///
    /// '(default)' is not allowed; please use empty string '' to refer the default
    /// database.
    #[prost(string, tag = "9")]
    pub database_id: ::prost::alloc::string::String,
    /// Required. A list of keys with complete key paths whose numeric IDs should
    /// not be auto-allocated.
    #[prost(message, repeated, tag = "1")]
    pub keys: ::prost::alloc::vec::Vec<Key>,
}
/// The response for
/// [Datastore.ReserveIds][google.datastore.v1.Datastore.ReserveIds].
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ReserveIdsResponse {}
/// A mutation to apply to an entity.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Mutation {
    /// The mutation operation.
    ///
    /// For `insert`, `update`, and `upsert`:
    /// - The entity's key must not be reserved/read-only.
    /// - No property in the entity may have a reserved name,
    ///    not even a property in an entity in a value.
    /// - No value in the entity may have meaning 18,
    ///    not even a value in an entity in another value.
    #[prost(oneof = "mutation::Operation", tags = "4, 5, 6, 7")]
    pub operation: ::core::option::Option<mutation::Operation>,
    /// When set, the server will detect whether or not this mutation conflicts
    /// with the current version of the entity on the server. Conflicting mutations
    /// are not applied, and are marked as such in MutationResult.
    #[prost(oneof = "mutation::ConflictDetectionStrategy", tags = "8, 11")]
    pub conflict_detection_strategy: ::core::option::Option<
        mutation::ConflictDetectionStrategy,
    >,
}
/// Nested message and enum types in `Mutation`.
pub mod mutation {
    /// The mutation operation.
    ///
    /// For `insert`, `update`, and `upsert`:
    /// - The entity's key must not be reserved/read-only.
    /// - No property in the entity may have a reserved name,
    ///    not even a property in an entity in a value.
    /// - No value in the entity may have meaning 18,
    ///    not even a value in an entity in another value.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum Operation {
        /// The entity to insert. The entity must not already exist.
        /// The entity key's final path element may be incomplete.
        #[prost(message, tag = "4")]
        Insert(super::Entity),
        /// The entity to update. The entity must already exist.
        /// Must have a complete key path.
        #[prost(message, tag = "5")]
        Update(super::Entity),
        /// The entity to upsert. The entity may or may not already exist.
        /// The entity key's final path element may be incomplete.
        #[prost(message, tag = "6")]
        Upsert(super::Entity),
        /// The key of the entity to delete. The entity may or may not already exist.
        /// Must have a complete key path and must not be reserved/read-only.
        #[prost(message, tag = "7")]
        Delete(super::Key),
    }
    /// When set, the server will detect whether or not this mutation conflicts
    /// with the current version of the entity on the server. Conflicting mutations
    /// are not applied, and are marked as such in MutationResult.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum ConflictDetectionStrategy {
        /// The version of the entity that this mutation is being applied
        /// to. If this does not match the current version on the server, the
        /// mutation conflicts.
        #[prost(int64, tag = "8")]
        BaseVersion(i64),
        /// The update time of the entity that this mutation is being applied
        /// to. If this does not match the current update time on the server, the
        /// mutation conflicts.
        #[prost(message, tag = "11")]
        UpdateTime(::prost_types::Timestamp),
    }
}
/// The result of applying a mutation.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct MutationResult {
    /// The automatically allocated key.
    /// Set only when the mutation allocated a key.
    #[prost(message, optional, tag = "3")]
    pub key: ::core::option::Option<Key>,
    /// The version of the entity on the server after processing the mutation. If
    /// the mutation doesn't change anything on the server, then the version will
    /// be the version of the current entity or, if no entity is present, a version
    /// that is strictly greater than the version of any previous entity and less
    /// than the version of any possible future entity.
    #[prost(int64, tag = "4")]
    pub version: i64,
    /// The create time of the entity. This field will not be set after a 'delete'.
    #[prost(message, optional, tag = "7")]
    pub create_time: ::core::option::Option<::prost_types::Timestamp>,
    /// The update time of the entity on the server after processing the mutation.
    /// If the mutation doesn't change anything on the server, then the timestamp
    /// will be the update timestamp of the current entity. This field will not be
    /// set after a 'delete'.
    #[prost(message, optional, tag = "6")]
    pub update_time: ::core::option::Option<::prost_types::Timestamp>,
    /// Whether a conflict was detected for this mutation. Always false when a
    /// conflict detection strategy field is not set in the mutation.
    #[prost(bool, tag = "5")]
    pub conflict_detected: bool,
}
/// The options shared by read requests.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct ReadOptions {
    /// For Cloud Datastore, if read_consistency is not specified, then lookups and
    /// ancestor queries default to `read_consistency`=`STRONG`, global queries
    /// default to `read_consistency`=`EVENTUAL`.
    ///
    /// For Cloud Firestore in Datastore mode, if read_consistency is not specified
    /// then lookups and all queries default to `read_consistency`=`STRONG`.
    ///
    /// Explicitly setting `read_consistency`=`EVENTUAL` will result in eventually
    /// consistent lookups & queries in both Cloud Datastore & Cloud Firestore in
    /// Datastore mode.
    #[prost(oneof = "read_options::ConsistencyType", tags = "1, 2, 3, 4")]
    pub consistency_type: ::core::option::Option<read_options::ConsistencyType>,
}
/// Nested message and enum types in `ReadOptions`.
pub mod read_options {
    /// The possible values for read consistencies.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum ReadConsistency {
        /// Unspecified. This value must not be used.
        Unspecified = 0,
        /// Strong consistency.
        Strong = 1,
        /// Eventual consistency.
        Eventual = 2,
    }
    impl ReadConsistency {
        /// String value of the enum field names used in the ProtoBuf definition.
        ///
        /// The values are not transformed in any way and thus are considered stable
        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
        pub fn as_str_name(&self) -> &'static str {
            match self {
                ReadConsistency::Unspecified => "READ_CONSISTENCY_UNSPECIFIED",
                ReadConsistency::Strong => "STRONG",
                ReadConsistency::Eventual => "EVENTUAL",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "READ_CONSISTENCY_UNSPECIFIED" => Some(Self::Unspecified),
                "STRONG" => Some(Self::Strong),
                "EVENTUAL" => Some(Self::Eventual),
                _ => None,
            }
        }
    }
    /// For Cloud Datastore, if read_consistency is not specified, then lookups and
    /// ancestor queries default to `read_consistency`=`STRONG`, global queries
    /// default to `read_consistency`=`EVENTUAL`.
    ///
    /// For Cloud Firestore in Datastore mode, if read_consistency is not specified
    /// then lookups and all queries default to `read_consistency`=`STRONG`.
    ///
    /// Explicitly setting `read_consistency`=`EVENTUAL` will result in eventually
    /// consistent lookups & queries in both Cloud Datastore & Cloud Firestore in
    /// Datastore mode.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum ConsistencyType {
        /// The non-transactional read consistency to use.
        #[prost(enumeration = "ReadConsistency", tag = "1")]
        ReadConsistency(i32),
        /// The identifier of the transaction in which to read. A
        /// transaction identifier is returned by a call to
        /// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction].
        #[prost(bytes, tag = "2")]
        Transaction(::prost::bytes::Bytes),
        /// Options for beginning a new transaction for this request.
        ///
        /// The new transaction identifier will be returned in the corresponding
        /// response as either
        /// [LookupResponse.transaction][google.datastore.v1.LookupResponse.transaction]
        /// or
        /// [RunQueryResponse.transaction][google.datastore.v1.RunQueryResponse.transaction].
        #[prost(message, tag = "3")]
        NewTransaction(super::TransactionOptions),
        /// Reads entities as they were at the given time. This value is only
        /// supported for Cloud Firestore in Datastore mode.
        ///
        /// This must be a microsecond precision timestamp within the past one hour,
        /// or if Point-in-Time Recovery is enabled, can additionally be a whole
        /// minute timestamp within the past 7 days.
        #[prost(message, tag = "4")]
        ReadTime(::prost_types::Timestamp),
    }
}
/// Options for beginning a new transaction.
///
/// Transactions can be created explicitly with calls to
/// [Datastore.BeginTransaction][google.datastore.v1.Datastore.BeginTransaction]
/// or implicitly by setting
/// [ReadOptions.new_transaction][google.datastore.v1.ReadOptions.new_transaction]
/// in read requests.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct TransactionOptions {
    /// The `mode` of the transaction, indicating whether write operations are
    /// supported.
    #[prost(oneof = "transaction_options::Mode", tags = "1, 2")]
    pub mode: ::core::option::Option<transaction_options::Mode>,
}
/// Nested message and enum types in `TransactionOptions`.
pub mod transaction_options {
    /// Options specific to read / write transactions.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct ReadWrite {
        /// The transaction identifier of the transaction being retried.
        #[prost(bytes = "bytes", tag = "1")]
        pub previous_transaction: ::prost::bytes::Bytes,
    }
    /// Options specific to read-only transactions.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct ReadOnly {
        /// Reads entities at the given time.
        ///
        /// This must be a microsecond precision timestamp within the past one hour,
        /// or if Point-in-Time Recovery is enabled, can additionally be a whole
        /// minute timestamp within the past 7 days.
        #[prost(message, optional, tag = "1")]
        pub read_time: ::core::option::Option<::prost_types::Timestamp>,
    }
    /// The `mode` of the transaction, indicating whether write operations are
    /// supported.
    #[allow(clippy::derive_partial_eq_without_eq)]
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum Mode {
        /// The transaction should allow both reads and writes.
        #[prost(message, tag = "1")]
        ReadWrite(ReadWrite),
        /// The transaction should only allow reads.
        #[prost(message, tag = "2")]
        ReadOnly(ReadOnly),
    }
}
/// Generated client implementations.
pub mod datastore_client {
    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
    use tonic::codegen::*;
    use tonic::codegen::http::Uri;
    /// Each RPC normalizes the partition IDs of the keys in its input entities,
    /// and always returns entities with keys with normalized partition IDs.
    /// This applies to all keys and entities, including those in values, except keys
    /// with both an empty path and an empty or unset partition ID. Normalization of
    /// input keys sets the project ID (if not already set) to the project ID from
    /// the request.
    ///
    #[derive(Debug, Clone)]
    pub struct DatastoreClient<T> {
        inner: tonic::client::Grpc<T>,
    }
    impl<T> DatastoreClient<T>
    where
        T: tonic::client::GrpcService<tonic::body::BoxBody>,
        T::Error: Into<StdError>,
        T::ResponseBody: Body<Data = Bytes> + Send + 'static,
        <T::ResponseBody as Body>::Error: Into<StdError> + Send,
    {
        pub fn new(inner: T) -> Self {
            let inner = tonic::client::Grpc::new(inner);
            Self { inner }
        }
        pub fn with_origin(inner: T, origin: Uri) -> Self {
            let inner = tonic::client::Grpc::with_origin(inner, origin);
            Self { inner }
        }
        pub fn with_interceptor<F>(
            inner: T,
            interceptor: F,
        ) -> DatastoreClient<InterceptedService<T, F>>
        where
            F: tonic::service::Interceptor,
            T::ResponseBody: Default,
            T: tonic::codegen::Service<
                http::Request<tonic::body::BoxBody>,
                Response = http::Response<
                    <T as tonic::client::GrpcService<tonic::body::BoxBody>>::ResponseBody,
                >,
            >,
            <T as tonic::codegen::Service<
                http::Request<tonic::body::BoxBody>,
            >>::Error: Into<StdError> + Send + Sync,
        {
            DatastoreClient::new(InterceptedService::new(inner, interceptor))
        }
        /// Compress requests with the given encoding.
        ///
        /// This requires the server to support it otherwise it might respond with an
        /// error.
        #[must_use]
        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
            self.inner = self.inner.send_compressed(encoding);
            self
        }
        /// Enable decompressing responses.
        #[must_use]
        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
            self.inner = self.inner.accept_compressed(encoding);
            self
        }
        /// Limits the maximum size of a decoded message.
        ///
        /// Default: `4MB`
        #[must_use]
        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
            self.inner = self.inner.max_decoding_message_size(limit);
            self
        }
        /// Limits the maximum size of an encoded message.
        ///
        /// Default: `usize::MAX`
        #[must_use]
        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
            self.inner = self.inner.max_encoding_message_size(limit);
            self
        }
        /// Looks up entities by key.
        pub async fn lookup(
            &mut self,
            request: impl tonic::IntoRequest<super::LookupRequest>,
        ) -> std::result::Result<tonic::Response<super::LookupResponse>, tonic::Status> {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/Lookup",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "Lookup"));
            self.inner.unary(req, path, codec).await
        }
        /// Queries for entities.
        pub async fn run_query(
            &mut self,
            request: impl tonic::IntoRequest<super::RunQueryRequest>,
        ) -> std::result::Result<
            tonic::Response<super::RunQueryResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/RunQuery",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "RunQuery"));
            self.inner.unary(req, path, codec).await
        }
        /// Runs an aggregation query.
        pub async fn run_aggregation_query(
            &mut self,
            request: impl tonic::IntoRequest<super::RunAggregationQueryRequest>,
        ) -> std::result::Result<
            tonic::Response<super::RunAggregationQueryResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/RunAggregationQuery",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(
                    GrpcMethod::new(
                        "google.datastore.v1.Datastore",
                        "RunAggregationQuery",
                    ),
                );
            self.inner.unary(req, path, codec).await
        }
        /// Begins a new transaction.
        pub async fn begin_transaction(
            &mut self,
            request: impl tonic::IntoRequest<super::BeginTransactionRequest>,
        ) -> std::result::Result<
            tonic::Response<super::BeginTransactionResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/BeginTransaction",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(
                    GrpcMethod::new("google.datastore.v1.Datastore", "BeginTransaction"),
                );
            self.inner.unary(req, path, codec).await
        }
        /// Commits a transaction, optionally creating, deleting or modifying some
        /// entities.
        pub async fn commit(
            &mut self,
            request: impl tonic::IntoRequest<super::CommitRequest>,
        ) -> std::result::Result<tonic::Response<super::CommitResponse>, tonic::Status> {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/Commit",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "Commit"));
            self.inner.unary(req, path, codec).await
        }
        /// Rolls back a transaction.
        pub async fn rollback(
            &mut self,
            request: impl tonic::IntoRequest<super::RollbackRequest>,
        ) -> std::result::Result<
            tonic::Response<super::RollbackResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/Rollback",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "Rollback"));
            self.inner.unary(req, path, codec).await
        }
        /// Allocates IDs for the given keys, which is useful for referencing an entity
        /// before it is inserted.
        pub async fn allocate_ids(
            &mut self,
            request: impl tonic::IntoRequest<super::AllocateIdsRequest>,
        ) -> std::result::Result<
            tonic::Response<super::AllocateIdsResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/AllocateIds",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "AllocateIds"));
            self.inner.unary(req, path, codec).await
        }
        /// Prevents the supplied keys' IDs from being auto-allocated by Cloud
        /// Datastore.
        pub async fn reserve_ids(
            &mut self,
            request: impl tonic::IntoRequest<super::ReserveIdsRequest>,
        ) -> std::result::Result<
            tonic::Response<super::ReserveIdsResponse>,
            tonic::Status,
        > {
            self.inner
                .ready()
                .await
                .map_err(|e| {
                    tonic::Status::new(
                        tonic::Code::Unknown,
                        format!("Service was not ready: {}", e.into()),
                    )
                })?;
            let codec = tonic::codec::ProstCodec::default();
            let path = http::uri::PathAndQuery::from_static(
                "/google.datastore.v1.Datastore/ReserveIds",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(GrpcMethod::new("google.datastore.v1.Datastore", "ReserveIds"));
            self.inner.unary(req, path, codec).await
        }
    }
}