// This file is @generated by prost-build.
/// A span represents a single operation within a trace. Spans can be
/// nested to form a trace tree. Often, a trace contains a root span
/// that describes the end-to-end latency, and one or more subspans for
/// its sub-operations.
///
/// A trace can also contain multiple root spans, or none at all.
/// Spans do not need to be contiguous. There might be
/// gaps or overlaps between spans in a trace.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Span {
    /// Required. The resource name of the span in the following format:
    ///
    ///   * `projects/\[PROJECT_ID\]/traces/\[TRACE_ID\]/spans/\[SPAN_ID\]`
    ///
    /// `\[TRACE_ID\]` is a unique identifier for a trace within a project;
    /// it is a 32-character hexadecimal encoding of a 16-byte array. It should
    /// not be zero.
    ///
    /// `\[SPAN_ID\]` is a unique identifier for a span within a trace; it
    /// is a 16-character hexadecimal encoding of an 8-byte array. It should not
    /// be zero.
    /// .
    #[prost(string, tag = "1")]
    pub name: ::prost::alloc::string::String,
    /// Required. The `\[SPAN_ID\]` portion of the span's resource name.
    #[prost(string, tag = "2")]
    pub span_id: ::prost::alloc::string::String,
    /// The `\[SPAN_ID\]` of this span's parent span. If this is a root span,
    /// then this field must be empty.
    #[prost(string, tag = "3")]
    pub parent_span_id: ::prost::alloc::string::String,
    /// Required. A description of the span's operation (up to 128 bytes).
    /// Cloud Trace displays the description in the
    /// Cloud console.
    /// For example, the display name can be a qualified method name or a file name
    /// and a line number where the operation is called. A best practice is to use
    /// the same display name within an application and at the same call point.
    /// This makes it easier to correlate spans in different traces.
    #[prost(message, optional, tag = "4")]
    pub display_name: ::core::option::Option<TruncatableString>,
    /// Required. The start time of the span. On the client side, this is the time
    /// kept by the local machine where the span execution starts. On the server
    /// side, this is the time when the server's application handler starts
    /// running.
    #[prost(message, optional, tag = "5")]
    pub start_time: ::core::option::Option<::prost_types::Timestamp>,
    /// Required. The end time of the span. On the client side, this is the time
    /// kept by the local machine where the span execution ends. On the server
    /// side, this is the time when the server application handler stops running.
    #[prost(message, optional, tag = "6")]
    pub end_time: ::core::option::Option<::prost_types::Timestamp>,
    /// A set of attributes on the span. You can have up to 32 attributes per
    /// span.
    #[prost(message, optional, tag = "7")]
    pub attributes: ::core::option::Option<span::Attributes>,
    /// Stack trace captured at the start of the span.
    #[prost(message, optional, tag = "8")]
    pub stack_trace: ::core::option::Option<StackTrace>,
    /// A set of time events. You can have up to 32 annotations and 128 message
    /// events per span.
    #[prost(message, optional, tag = "9")]
    pub time_events: ::core::option::Option<span::TimeEvents>,
    /// Links associated with the span. You can have up to 128 links per Span.
    #[prost(message, optional, tag = "10")]
    pub links: ::core::option::Option<span::Links>,
    /// Optional. The final status for this span.
    #[prost(message, optional, tag = "11")]
    pub status: ::core::option::Option<super::super::super::rpc::Status>,
    /// Optional. Set this parameter to indicate whether this span is in
    /// the same process as its parent. If you do not set this parameter,
    /// Trace is unable to take advantage of this helpful information.
    #[prost(message, optional, tag = "12")]
    pub same_process_as_parent_span: ::core::option::Option<bool>,
    /// Optional. The number of child spans that were generated while this span
    /// was active. If set, allows implementation to detect missing child spans.
    #[prost(message, optional, tag = "13")]
    pub child_span_count: ::core::option::Option<i32>,
    /// Optional. Distinguishes between spans generated in a particular context.
    /// For example, two spans with the same name may be distinguished using
    /// `CLIENT` (caller) and `SERVER` (callee) to identify an RPC call.
    #[prost(enumeration = "span::SpanKind", tag = "14")]
    pub span_kind: i32,
}
/// Nested message and enum types in `Span`.
pub mod span {
    /// A set of attributes as key-value pairs.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct Attributes {
        /// A set of attributes. Each attribute's key can be up to 128 bytes
        /// long. The value can be a string up to 256 bytes, a signed 64-bit integer,
        /// or the boolean values `true` or `false`. For example:
        ///
        ///      "/instance_id": { "string_value": { "value": "my-instance" } }
        ///      "/http/request_bytes": { "int_value": 300 }
        ///      "abc.com/myattribute": { "bool_value": false }
        #[prost(btree_map = "string, message", tag = "1")]
        pub attribute_map: ::prost::alloc::collections::BTreeMap<
            ::prost::alloc::string::String,
            super::AttributeValue,
        >,
        /// The number of attributes that were discarded. Attributes can be discarded
        /// because their keys are too long or because there are too many attributes.
        /// If this value is 0 then all attributes are valid.
        #[prost(int32, tag = "2")]
        pub dropped_attributes_count: i32,
    }
    /// A time-stamped annotation or message event in the Span.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct TimeEvent {
        /// The timestamp indicating the time the event occurred.
        #[prost(message, optional, tag = "1")]
        pub time: ::core::option::Option<::prost_types::Timestamp>,
        /// A `TimeEvent` can contain either an `Annotation` object or a
        /// `MessageEvent` object, but not both.
        #[prost(oneof = "time_event::Value", tags = "2, 3")]
        pub value: ::core::option::Option<time_event::Value>,
    }
    /// Nested message and enum types in `TimeEvent`.
    pub mod time_event {
        /// Text annotation with a set of attributes.
        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct Annotation {
            /// A user-supplied message describing the event. The maximum length for
            /// the description is 256 bytes.
            #[prost(message, optional, tag = "1")]
            pub description: ::core::option::Option<super::super::TruncatableString>,
            /// A set of attributes on the annotation. You can have up to 4 attributes
            /// per Annotation.
            #[prost(message, optional, tag = "2")]
            pub attributes: ::core::option::Option<super::Attributes>,
        }
        /// An event describing a message sent/received between Spans.
        #[derive(Clone, Copy, PartialEq, ::prost::Message)]
        pub struct MessageEvent {
            /// Type of MessageEvent. Indicates whether the message was sent or
            /// received.
            #[prost(enumeration = "message_event::Type", tag = "1")]
            pub r#type: i32,
            /// An identifier for the MessageEvent's message that can be used to match
            /// `SENT` and `RECEIVED` MessageEvents.
            #[prost(int64, tag = "2")]
            pub id: i64,
            /// The number of uncompressed bytes sent or received.
            #[prost(int64, tag = "3")]
            pub uncompressed_size_bytes: i64,
            /// The number of compressed bytes sent or received. If missing, the
            /// compressed size is assumed to be the same size as the uncompressed
            /// size.
            #[prost(int64, tag = "4")]
            pub compressed_size_bytes: i64,
        }
        /// Nested message and enum types in `MessageEvent`.
        pub mod message_event {
            /// Indicates whether the message was sent or received.
            #[derive(
                Clone,
                Copy,
                Debug,
                PartialEq,
                Eq,
                Hash,
                PartialOrd,
                Ord,
                ::prost::Enumeration
            )]
            #[repr(i32)]
            pub enum Type {
                /// Unknown event type.
                Unspecified = 0,
                /// Indicates a sent message.
                Sent = 1,
                /// Indicates a received message.
                Received = 2,
            }
            impl Type {
                /// 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 {
                        Type::Unspecified => "TYPE_UNSPECIFIED",
                        Type::Sent => "SENT",
                        Type::Received => "RECEIVED",
                    }
                }
                /// Creates an enum from field names used in the ProtoBuf definition.
                pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
                    match value {
                        "TYPE_UNSPECIFIED" => Some(Self::Unspecified),
                        "SENT" => Some(Self::Sent),
                        "RECEIVED" => Some(Self::Received),
                        _ => None,
                    }
                }
            }
        }
        /// A `TimeEvent` can contain either an `Annotation` object or a
        /// `MessageEvent` object, but not both.
        #[derive(Clone, PartialEq, ::prost::Oneof)]
        pub enum Value {
            /// Text annotation with a set of attributes.
            #[prost(message, tag = "2")]
            Annotation(Annotation),
            /// An event describing a message sent/received between Spans.
            #[prost(message, tag = "3")]
            MessageEvent(MessageEvent),
        }
    }
    /// A collection of `TimeEvent`s. A `TimeEvent` is a time-stamped annotation
    /// on the span, consisting of either user-supplied key:value pairs, or
    /// details of a message sent/received between Spans.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct TimeEvents {
        /// A collection of `TimeEvent`s.
        #[prost(message, repeated, tag = "1")]
        pub time_event: ::prost::alloc::vec::Vec<TimeEvent>,
        /// The number of dropped annotations in all the included time events.
        /// If the value is 0, then no annotations were dropped.
        #[prost(int32, tag = "2")]
        pub dropped_annotations_count: i32,
        /// The number of dropped message events in all the included time events.
        /// If the value is 0, then no message events were dropped.
        #[prost(int32, tag = "3")]
        pub dropped_message_events_count: i32,
    }
    /// A pointer from the current span to another span in the same trace or in a
    /// different trace. For example, this can be used in batching operations,
    /// where a single batch handler processes multiple requests from different
    /// traces or when the handler receives a request from a different project.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct Link {
        /// The `\[TRACE_ID\]` for a trace within a project.
        #[prost(string, tag = "1")]
        pub trace_id: ::prost::alloc::string::String,
        /// The `\[SPAN_ID\]` for a span within a trace.
        #[prost(string, tag = "2")]
        pub span_id: ::prost::alloc::string::String,
        /// The relationship of the current span relative to the linked span.
        #[prost(enumeration = "link::Type", tag = "3")]
        pub r#type: i32,
        /// A set of attributes on the link. Up to 32 attributes can be
        /// specified per link.
        #[prost(message, optional, tag = "4")]
        pub attributes: ::core::option::Option<Attributes>,
    }
    /// Nested message and enum types in `Link`.
    pub mod link {
        /// The relationship of the current span relative to the linked span: child,
        /// parent, or unspecified.
        #[derive(
            Clone,
            Copy,
            Debug,
            PartialEq,
            Eq,
            Hash,
            PartialOrd,
            Ord,
            ::prost::Enumeration
        )]
        #[repr(i32)]
        pub enum Type {
            /// The relationship of the two spans is unknown.
            Unspecified = 0,
            /// The linked span is a child of the current span.
            ChildLinkedSpan = 1,
            /// The linked span is a parent of the current span.
            ParentLinkedSpan = 2,
        }
        impl Type {
            /// 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 {
                    Type::Unspecified => "TYPE_UNSPECIFIED",
                    Type::ChildLinkedSpan => "CHILD_LINKED_SPAN",
                    Type::ParentLinkedSpan => "PARENT_LINKED_SPAN",
                }
            }
            /// Creates an enum from field names used in the ProtoBuf definition.
            pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
                match value {
                    "TYPE_UNSPECIFIED" => Some(Self::Unspecified),
                    "CHILD_LINKED_SPAN" => Some(Self::ChildLinkedSpan),
                    "PARENT_LINKED_SPAN" => Some(Self::ParentLinkedSpan),
                    _ => None,
                }
            }
        }
    }
    /// A collection of links, which are references from this span to a span
    /// in the same or different trace.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct Links {
        /// A collection of links.
        #[prost(message, repeated, tag = "1")]
        pub link: ::prost::alloc::vec::Vec<Link>,
        /// The number of dropped links after the maximum size was enforced. If
        /// this value is 0, then no links were dropped.
        #[prost(int32, tag = "2")]
        pub dropped_links_count: i32,
    }
    /// Type of span. Can be used to specify additional relationships between spans
    /// in addition to a parent/child relationship.
    #[derive(
        Clone,
        Copy,
        Debug,
        PartialEq,
        Eq,
        Hash,
        PartialOrd,
        Ord,
        ::prost::Enumeration
    )]
    #[repr(i32)]
    pub enum SpanKind {
        /// Unspecified. Do NOT use as default.
        /// Implementations MAY assume SpanKind.INTERNAL to be default.
        Unspecified = 0,
        /// Indicates that the span is used internally. Default value.
        Internal = 1,
        /// Indicates that the span covers server-side handling of an RPC or other
        /// remote network request.
        Server = 2,
        /// Indicates that the span covers the client-side wrapper around an RPC or
        /// other remote request.
        Client = 3,
        /// Indicates that the span describes producer sending a message to a broker.
        /// Unlike client and  server, there is no direct critical path latency
        /// relationship between producer and consumer spans (e.g. publishing a
        /// message to a pubsub service).
        Producer = 4,
        /// Indicates that the span describes consumer receiving a message from a
        /// broker. Unlike client and  server, there is no direct critical path
        /// latency relationship between producer and consumer spans (e.g. receiving
        /// a message from a pubsub service subscription).
        Consumer = 5,
    }
    impl SpanKind {
        /// 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 {
                SpanKind::Unspecified => "SPAN_KIND_UNSPECIFIED",
                SpanKind::Internal => "INTERNAL",
                SpanKind::Server => "SERVER",
                SpanKind::Client => "CLIENT",
                SpanKind::Producer => "PRODUCER",
                SpanKind::Consumer => "CONSUMER",
            }
        }
        /// Creates an enum from field names used in the ProtoBuf definition.
        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
            match value {
                "SPAN_KIND_UNSPECIFIED" => Some(Self::Unspecified),
                "INTERNAL" => Some(Self::Internal),
                "SERVER" => Some(Self::Server),
                "CLIENT" => Some(Self::Client),
                "PRODUCER" => Some(Self::Producer),
                "CONSUMER" => Some(Self::Consumer),
                _ => None,
            }
        }
    }
}
/// The allowed types for `\[VALUE\]` in a `\[KEY\]:[VALUE]` attribute.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct AttributeValue {
    /// The type of the value.
    #[prost(oneof = "attribute_value::Value", tags = "1, 2, 3")]
    pub value: ::core::option::Option<attribute_value::Value>,
}
/// Nested message and enum types in `AttributeValue`.
pub mod attribute_value {
    /// The type of the value.
    #[derive(Clone, PartialEq, ::prost::Oneof)]
    pub enum Value {
        /// A string up to 256 bytes long.
        #[prost(message, tag = "1")]
        StringValue(super::TruncatableString),
        /// A 64-bit signed integer.
        #[prost(int64, tag = "2")]
        IntValue(i64),
        /// A Boolean value represented by `true` or `false`.
        #[prost(bool, tag = "3")]
        BoolValue(bool),
    }
}
/// A call stack appearing in a trace.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct StackTrace {
    /// Stack frames in this stack trace. A maximum of 128 frames are allowed.
    #[prost(message, optional, tag = "1")]
    pub stack_frames: ::core::option::Option<stack_trace::StackFrames>,
    /// The hash ID is used to conserve network bandwidth for duplicate
    /// stack traces within a single trace.
    ///
    /// Often multiple spans will have identical stack traces.
    /// The first occurrence of a stack trace should contain both the
    /// `stackFrame` content and a value in `stackTraceHashId`.
    ///
    /// Subsequent spans within the same request can refer
    /// to that stack trace by only setting `stackTraceHashId`.
    #[prost(int64, tag = "2")]
    pub stack_trace_hash_id: i64,
}
/// Nested message and enum types in `StackTrace`.
pub mod stack_trace {
    /// Represents a single stack frame in a stack trace.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct StackFrame {
        /// The fully-qualified name that uniquely identifies the function or
        /// method that is active in this frame (up to 1024 bytes).
        #[prost(message, optional, tag = "1")]
        pub function_name: ::core::option::Option<super::TruncatableString>,
        /// An un-mangled function name, if `function_name` is mangled.
        /// To get information about name mangling, run
        /// [this search](<https://www.google.com/search?q=cxx+name+mangling>).
        /// The name can be fully-qualified (up to 1024 bytes).
        #[prost(message, optional, tag = "2")]
        pub original_function_name: ::core::option::Option<super::TruncatableString>,
        /// The name of the source file where the function call appears (up to 256
        /// bytes).
        #[prost(message, optional, tag = "3")]
        pub file_name: ::core::option::Option<super::TruncatableString>,
        /// The line number in `file_name` where the function call appears.
        #[prost(int64, tag = "4")]
        pub line_number: i64,
        /// The column number where the function call appears, if available.
        /// This is important in JavaScript because of its anonymous functions.
        #[prost(int64, tag = "5")]
        pub column_number: i64,
        /// The binary module from where the code was loaded.
        #[prost(message, optional, tag = "6")]
        pub load_module: ::core::option::Option<super::Module>,
        /// The version of the deployed source code (up to 128 bytes).
        #[prost(message, optional, tag = "7")]
        pub source_version: ::core::option::Option<super::TruncatableString>,
    }
    /// A collection of stack frames, which can be truncated.
    #[derive(Clone, PartialEq, ::prost::Message)]
    pub struct StackFrames {
        /// Stack frames in this call stack.
        #[prost(message, repeated, tag = "1")]
        pub frame: ::prost::alloc::vec::Vec<StackFrame>,
        /// The number of stack frames that were dropped because there
        /// were too many stack frames.
        /// If this value is 0, then no stack frames were dropped.
        #[prost(int32, tag = "2")]
        pub dropped_frames_count: i32,
    }
}
/// Binary module.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Module {
    /// For example: main binary, kernel modules, and dynamic libraries
    /// such as libc.so, sharedlib.so (up to 256 bytes).
    #[prost(message, optional, tag = "1")]
    pub module: ::core::option::Option<TruncatableString>,
    /// A unique identifier for the module, usually a hash of its
    /// contents (up to 128 bytes).
    #[prost(message, optional, tag = "2")]
    pub build_id: ::core::option::Option<TruncatableString>,
}
/// Represents a string that might be shortened to a specified length.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct TruncatableString {
    /// The shortened string. For example, if the original string is 500
    /// bytes long and the limit of the string is 128 bytes, then
    /// `value` contains the first 128 bytes of the 500-byte string.
    ///
    /// Truncation always happens on a UTF8 character boundary. If there
    /// are multi-byte characters in the string, then the length of the
    /// shortened string might be less than the size limit.
    #[prost(string, tag = "1")]
    pub value: ::prost::alloc::string::String,
    /// The number of bytes removed from the original string. If this
    /// value is 0, then the string was not shortened.
    #[prost(int32, tag = "2")]
    pub truncated_byte_count: i32,
}
/// The request message for the `BatchWriteSpans` method.
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct BatchWriteSpansRequest {
    /// Required. The name of the project where the spans belong. The format is
    /// `projects/\[PROJECT_ID\]`.
    #[prost(string, tag = "1")]
    pub name: ::prost::alloc::string::String,
    /// Required. A list of new spans. The span names must not match existing
    /// spans, otherwise the results are undefined.
    #[prost(message, repeated, tag = "2")]
    pub spans: ::prost::alloc::vec::Vec<Span>,
}
/// Generated client implementations.
pub mod trace_service_client {
    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
    use tonic::codegen::*;
    use tonic::codegen::http::Uri;
    /// Service for collecting and viewing traces and spans within a trace.
    ///
    /// A trace is a collection of spans corresponding to a single
    /// operation or a set of operations in an application.
    ///
    /// A span is an individual timed event which forms a node of the trace tree.
    /// A single trace can contain spans from multiple services.
    #[derive(Debug, Clone)]
    pub struct TraceServiceClient<T> {
        inner: tonic::client::Grpc<T>,
    }
    impl<T> TraceServiceClient<T>
    where
        T: tonic::client::GrpcService<tonic::body::BoxBody>,
        T::Error: Into<StdError>,
        T::ResponseBody: Body<Data = Bytes> + std::marker::Send + 'static,
        <T::ResponseBody as Body>::Error: Into<StdError> + std::marker::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,
        ) -> TraceServiceClient<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> + std::marker::Send + std::marker::Sync,
        {
            TraceServiceClient::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
        }
        /// Batch writes new spans to new or existing traces. You cannot update
        /// existing spans.
        pub async fn batch_write_spans(
            &mut self,
            request: impl tonic::IntoRequest<super::BatchWriteSpansRequest>,
        ) -> std::result::Result<tonic::Response<()>, 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.devtools.cloudtrace.v2.TraceService/BatchWriteSpans",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(
                    GrpcMethod::new(
                        "google.devtools.cloudtrace.v2.TraceService",
                        "BatchWriteSpans",
                    ),
                );
            self.inner.unary(req, path, codec).await
        }
        /// Creates a new span.
        pub async fn create_span(
            &mut self,
            request: impl tonic::IntoRequest<super::Span>,
        ) -> std::result::Result<tonic::Response<super::Span>, 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.devtools.cloudtrace.v2.TraceService/CreateSpan",
            );
            let mut req = request.into_request();
            req.extensions_mut()
                .insert(
                    GrpcMethod::new(
                        "google.devtools.cloudtrace.v2.TraceService",
                        "CreateSpan",
                    ),
                );
            self.inner.unary(req, path, codec).await
        }
    }
}