// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Code generated file. DO NOT EDIT.

// Package tracing provides access to the Google Tracing API.
//
// For product documentation, see: https://cloud.google.com/trace
//
// Creating a client
//
// Usage example:
//
//   import "google.golang.org/api/tracing/v2"
//   ...
//   ctx := context.Background()
//   tracingService, err := tracing.NewService(ctx)
//
// In this example, Google Application Default Credentials are used for authentication.
//
// For information on how to create and obtain Application Default Credentials, see https://developers.google.com/identity/protocols/application-default-credentials.
//
// Other authentication options
//
// By default, all available scopes (see "Constants") are used to authenticate. To restrict scopes, use option.WithScopes:
//
//   tracingService, err := tracing.NewService(ctx, option.WithScopes(tracing.TraceReadonlyScope))
//
// To use an API key for authentication (note: some APIs do not support API keys), use option.WithAPIKey:
//
//   tracingService, err := tracing.NewService(ctx, option.WithAPIKey("AIza..."))
//
// To use an OAuth token (e.g., a user token obtained via a three-legged OAuth flow), use option.WithTokenSource:
//
//   config := &oauth2.Config{...}
//   // ...
//   token, err := config.Exchange(ctx, ...)
//   tracingService, err := tracing.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token)))
//
// See https://godoc.org/google.golang.org/api/option/ for details on options.
package tracing // import "google.golang.org/api/tracing/v2"

import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"net/http"
	"net/url"
	"strconv"
	"strings"

	googleapi "google.golang.org/api/googleapi"
	gensupport "google.golang.org/api/internal/gensupport"
	option "google.golang.org/api/option"
	htransport "google.golang.org/api/transport/http"
)

// Always reference these packages, just in case the auto-generated code
// below doesn't.
var _ = bytes.NewBuffer
var _ = strconv.Itoa
var _ = fmt.Sprintf
var _ = json.NewDecoder
var _ = io.Copy
var _ = url.Parse
var _ = gensupport.MarshalJSON
var _ = googleapi.Version
var _ = errors.New
var _ = strings.Replace
var _ = context.Canceled

const apiId = "tracing:v2"
const apiName = "tracing"
const apiVersion = "v2"
const basePath = "https://tracing.googleapis.com/"

// OAuth2 scopes used by this API.
const (
	// View and manage your data across Google Cloud Platform services
	CloudPlatformScope = "https://www.googleapis.com/auth/cloud-platform"

	// Write Trace data for a project or application
	TraceAppendScope = "https://www.googleapis.com/auth/trace.append"

	// Read Trace data for a project or application
	TraceReadonlyScope = "https://www.googleapis.com/auth/trace.readonly"
)

// NewService creates a new Service.
func NewService(ctx context.Context, opts ...option.ClientOption) (*Service, error) {
	scopesOption := option.WithScopes(
		"https://www.googleapis.com/auth/cloud-platform",
		"https://www.googleapis.com/auth/trace.append",
		"https://www.googleapis.com/auth/trace.readonly",
	)
	// NOTE: prepend, so we don't override user-specified scopes.
	opts = append([]option.ClientOption{scopesOption}, opts...)
	client, endpoint, err := htransport.NewClient(ctx, opts...)
	if err != nil {
		return nil, err
	}
	s, err := New(client)
	if err != nil {
		return nil, err
	}
	if endpoint != "" {
		s.BasePath = endpoint
	}
	return s, nil
}

// New creates a new Service. It uses the provided http.Client for requests.
//
// Deprecated: please use NewService instead.
// To provide a custom HTTP client, use option.WithHTTPClient.
// If you are using google.golang.org/api/googleapis/transport.APIKey, use option.WithAPIKey with NewService instead.
func New(client *http.Client) (*Service, error) {
	if client == nil {
		return nil, errors.New("client is nil")
	}
	s := &Service{client: client, BasePath: basePath}
	s.Projects = NewProjectsService(s)
	return s, nil
}

type Service struct {
	client    *http.Client
	BasePath  string // API endpoint base URL
	UserAgent string // optional additional User-Agent fragment

	Projects *ProjectsService
}

func (s *Service) userAgent() string {
	if s.UserAgent == "" {
		return googleapi.UserAgent
	}
	return googleapi.UserAgent + " " + s.UserAgent
}

func NewProjectsService(s *Service) *ProjectsService {
	rs := &ProjectsService{s: s}
	rs.Traces = NewProjectsTracesService(s)
	return rs
}

type ProjectsService struct {
	s *Service

	Traces *ProjectsTracesService
}

func NewProjectsTracesService(s *Service) *ProjectsTracesService {
	rs := &ProjectsTracesService{s: s}
	rs.Spans = NewProjectsTracesSpansService(s)
	return rs
}

type ProjectsTracesService struct {
	s *Service

	Spans *ProjectsTracesSpansService
}

func NewProjectsTracesSpansService(s *Service) *ProjectsTracesSpansService {
	rs := &ProjectsTracesSpansService{s: s}
	return rs
}

type ProjectsTracesSpansService struct {
	s *Service
}

// Annotation: Text annotation with a set of attributes. A maximum of 32
// annotations are
// allowed per Span.
type Annotation struct {
	// Attributes: A set of attributes on the annotation. A maximum of 4
	// attributes are
	// allowed per Annotation.
	Attributes *Attributes `json:"attributes,omitempty"`

	// Description: A user-supplied message describing the event. The
	// maximum length for
	// the description is 256 bytes.
	Description *TruncatableString `json:"description,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Attributes") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Attributes") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Annotation) MarshalJSON() ([]byte, error) {
	type NoMethod Annotation
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// AttributeValue: The allowed types for the value side of an attribute
// key:value pair.
type AttributeValue struct {
	// BoolValue: A boolean value.
	BoolValue bool `json:"boolValue,omitempty"`

	// IntValue: An integer value.
	IntValue int64 `json:"intValue,omitempty,string"`

	// StringValue: A string value (up to 256 bytes).
	StringValue *TruncatableString `json:"stringValue,omitempty"`

	// ForceSendFields is a list of field names (e.g. "BoolValue") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "BoolValue") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *AttributeValue) MarshalJSON() ([]byte, error) {
	type NoMethod AttributeValue
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Attributes: Attributes of a span with a key:value format.
type Attributes struct {
	// AttributeMap: The maximum key length is 128 bytes (attributes are
	// dropped if the
	// key size is larger than the maximum allowed). The value can be a
	// string
	// (up to 256 bytes), integer, or boolean (true/false). Some common
	// pair
	// examples:
	//
	//     "/instance_id": "my-instance"
	//     "/zone": "us-central1-a"
	//     "/grpc/peer_address": "ip:port" (dns, etc.)
	//     "/grpc/deadline": "Duration"
	//     "/http/user_agent"
	//     "/http/request_bytes": 300
	//     "/http/response_bytes": 1200
	//     "/http/url": google.com/apis
	//     "abc.com/myattribute": true
	AttributeMap map[string]AttributeValue `json:"attributeMap,omitempty"`

	// DroppedAttributesCount: The number of dropped attributes after the
	// maximum size was enforced. If
	// 0 then no attributes were dropped.
	DroppedAttributesCount int64 `json:"droppedAttributesCount,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AttributeMap") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "AttributeMap") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Attributes) MarshalJSON() ([]byte, error) {
	type NoMethod Attributes
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// BatchWriteSpansRequest: The request message for the `BatchWriteSpans`
// method.
type BatchWriteSpansRequest struct {
	// Spans: A collection of spans.
	Spans []*Span `json:"spans,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Spans") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Spans") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *BatchWriteSpansRequest) MarshalJSON() ([]byte, error) {
	type NoMethod BatchWriteSpansRequest
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Empty: A generic empty message that you can re-use to avoid defining
// duplicated
// empty messages in your APIs. A typical example is to use it as the
// request
// or the response type of an API method. For instance:
//
//     service Foo {
//       rpc Bar(google.protobuf.Empty) returns
// (google.protobuf.Empty);
//     }
//
// The JSON representation for `Empty` is empty JSON object `{}`.
type Empty struct {
	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`
}

// Link: A pointer from this span to another span in a different `Trace`
// within
// the same service project or within a different service project.
// Used
// (for example) in batching operations, where a single batch
// handler
// processes multiple requests from different traces or when receives
// a
// request from a different service project.
type Link struct {
	// SpanId: `SPAN_ID` is a unique identifier for a span within a trace.
	// It is a
	// base16-encoded, case-insensitive string of a 8-bytes array and
	// is
	// required to be 16 char long.
	SpanId string `json:"spanId,omitempty"`

	// TraceId: `TRACE_ID` is a unique identifier for a trace within a
	// project. It is
	// a base16-encoded, case-insensitive string of a 16-bytes array and
	// is
	// required to be 32 char long.
	TraceId string `json:"traceId,omitempty"`

	// Type: The relationship of the current span relative to the linked
	// span.
	//
	// Possible values:
	//   "TYPE_UNSPECIFIED" - The relationship of the two spans is unknown.
	//   "CHILD" - The current span is a child of the linked span.
	//   "PARENT" - The current span is the parent of the linked span.
	Type string `json:"type,omitempty"`

	// ForceSendFields is a list of field names (e.g. "SpanId") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "SpanId") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Link) MarshalJSON() ([]byte, error) {
	type NoMethod Link
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Links: A collection of links, which are references from this span to
// a span
// in the same or different trace.
type Links struct {
	// DroppedLinksCount: The number of dropped links after the maximum size
	// was enforced. If
	// 0 then no links were dropped.
	DroppedLinksCount int64 `json:"droppedLinksCount,omitempty"`

	// Link: A collection of links.
	Link []*Link `json:"link,omitempty"`

	// ForceSendFields is a list of field names (e.g. "DroppedLinksCount")
	// to unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "DroppedLinksCount") to
	// include in API requests with the JSON null value. By default, fields
	// with empty values are omitted from API requests. However, any field
	// with an empty value appearing in NullFields will be sent to the
	// server as null. It is an error if a field in this list has a
	// non-empty value. This may be used to include null fields in Patch
	// requests.
	NullFields []string `json:"-"`
}

func (s *Links) MarshalJSON() ([]byte, error) {
	type NoMethod Links
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// ListSpansResponse: The response message for the `ListSpans` method.
type ListSpansResponse struct {
	// NextPageToken: If defined, indicates that there are more spans that
	// match the request.
	// Pass this as the value of `pageToken` in a subsequent request to
	// retrieve
	// additional spans.
	NextPageToken string `json:"nextPageToken,omitempty"`

	// Spans: The requested spans if there are any in the specified trace.
	Spans []*Span `json:"spans,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "NextPageToken") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "NextPageToken") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *ListSpansResponse) MarshalJSON() ([]byte, error) {
	type NoMethod ListSpansResponse
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// ListTracesResponse: The response message for the `ListTraces` method.
type ListTracesResponse struct {
	// NextPageToken: If defined, indicates that there are more traces that
	// match the request
	// and that this value should be passed to the next request to
	// continue
	// retrieving additional traces.
	NextPageToken string `json:"nextPageToken,omitempty"`

	// Traces: List of trace records returned.
	Traces []*Trace `json:"traces,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "NextPageToken") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "NextPageToken") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *ListTracesResponse) MarshalJSON() ([]byte, error) {
	type NoMethod ListTracesResponse
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Module: Binary module.
type Module struct {
	// BuildId: Build_id is a unique identifier for the module, usually a
	// hash of its
	// contents (up to 128 characters).
	BuildId *TruncatableString `json:"buildId,omitempty"`

	// Module: E.g. main binary, kernel modules, and dynamic libraries
	// such as libc.so, sharedlib.so (up to 256 characters).
	Module *TruncatableString `json:"module,omitempty"`

	// ForceSendFields is a list of field names (e.g. "BuildId") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "BuildId") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Module) MarshalJSON() ([]byte, error) {
	type NoMethod Module
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// NetworkEvent: An event describing an RPC message sent/received on the
// network. A
// maximum of 128 network events are allowed per Span.
type NetworkEvent struct {
	// MessageId: An identifier for the message, which must be unique in
	// this span.
	MessageId uint64 `json:"messageId,omitempty,string"`

	// MessageSize: The number of bytes sent or received.
	MessageSize uint64 `json:"messageSize,omitempty,string"`

	// Time: If available, this is the kernel time:
	//
	// *  For sent messages, this is the time at which the first bit was
	// sent.
	// *  For received messages, this is the time at which the last bit was
	//    received.
	Time string `json:"time,omitempty"`

	// Type: Type of NetworkEvent. Indicates whether the RPC message was
	// sent or
	// received.
	//
	// Possible values:
	//   "TYPE_UNSPECIFIED" - Unknown event type.
	//   "SENT" - Indicates a sent RPC message.
	//   "RECV" - Indicates a received RPC message.
	Type string `json:"type,omitempty"`

	// ForceSendFields is a list of field names (e.g. "MessageId") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "MessageId") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *NetworkEvent) MarshalJSON() ([]byte, error) {
	type NoMethod NetworkEvent
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Span: 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, optionally, one or more
// subspans for
// its sub-operations. (A trace could alternatively contain multiple
// root spans,
// or none at all.) Spans do not need to be contiguous. There may be
// gaps
// and/or overlaps between spans in a trace.
type Span struct {
	// Attributes: A set of attributes on the span. A maximum of 32
	// attributes are allowed per
	// Span.
	Attributes *Attributes `json:"attributes,omitempty"`

	// DisplayName: Description of the operation in the span. It is
	// sanitized and displayed in
	// the Stackdriver Trace tool in the
	// {% dynamic print site_values.console_name %}.
	// The display_name may be a method name or some other per-call
	// site
	// name. For the same executable and the same call point, a best
	// practice is
	// to use a consistent operation name, which makes it easier to
	// correlate
	// cross-trace spans.
	// The maximum length for the display_name is 128 bytes.
	DisplayName *TruncatableString `json:"displayName,omitempty"`

	// EndTime: End time of the span.
	// On the client side, this is the local machine clock time at which the
	// span
	// execution was ended; on the server
	// side, this is the time at which the server application handler
	// stopped
	// running.
	EndTime string `json:"endTime,omitempty"`

	// Links: A maximum of 128 links are allowed per Span.
	Links *Links `json:"links,omitempty"`

	// Name: The resource name of Span in the
	// format
	// `projects/PROJECT_ID/traces/TRACE_ID/spans/SPAN_ID`.
	// `TRACE_ID`
	//  is a unique identifier for a trace within a project and is
	// a
	// base16-encoded, case-insensitive string and is required to be 32 char
	// long.
	// `SPAN_ID` is a unique identifier for a span within a trace. It is
	// a
	// base 16-encoded, case-insensitive string of a 8-bytes array and is
	// required
	// to be 16 char long.
	Name string `json:"name,omitempty"`

	// ParentSpanId: ID of parent span which is a base 16-encoded,
	// case-insensitive string of
	// a 8-bytes array and is required to be 16 char long. If this is a root
	// span,
	// the value must be empty.
	ParentSpanId string `json:"parentSpanId,omitempty"`

	// SpanId: Unique identifier for a span within a trace. It is a base
	// 16-encoded,
	// case-insensitive string of a 8-bytes array and is required.
	SpanId string `json:"spanId,omitempty"`

	// StackTrace: Stack trace captured at the start of the span.
	StackTrace *StackTrace `json:"stackTrace,omitempty"`

	// StartTime: Start time of the span.
	// On the client side, this is the local machine clock time at which the
	// span
	// execution was started; on the server
	// side, this is the time at which the server application handler
	// started
	// running.
	StartTime string `json:"startTime,omitempty"`

	// Status: An optional final status for this span.
	Status *Status `json:"status,omitempty"`

	// TimeEvents: A maximum of 32 annotations and 128 network events are
	// allowed per Span.
	TimeEvents *TimeEvents `json:"timeEvents,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "Attributes") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Attributes") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Span) MarshalJSON() ([]byte, error) {
	type NoMethod Span
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// StackFrame: Represents a single stack frame in a stack trace.
type StackFrame struct {
	// ColumnNumber: Column number is important in JavaScript (anonymous
	// functions).
	// May not be available in some languages.
	ColumnNumber int64 `json:"columnNumber,omitempty,string"`

	// FileName: The filename of the file containing this frame (up to 256
	// characters).
	FileName *TruncatableString `json:"fileName,omitempty"`

	// FunctionName: The fully-qualified name that uniquely identifies this
	// function or
	// method (up to 1024 characters).
	FunctionName *TruncatableString `json:"functionName,omitempty"`

	// LineNumber: Line number of the frame.
	LineNumber int64 `json:"lineNumber,omitempty,string"`

	// LoadModule: Binary module the code is loaded from.
	LoadModule *Module `json:"loadModule,omitempty"`

	// OriginalFunctionName: Used when the function name
	// is
	// [mangled](http://www.avabodh.com/cxxin/namemangling.html). May
	// be
	// fully-qualified (up to 1024 characters).
	OriginalFunctionName *TruncatableString `json:"originalFunctionName,omitempty"`

	// SourceVersion: The version of the deployed source code (up to 128
	// characters).
	SourceVersion *TruncatableString `json:"sourceVersion,omitempty"`

	// ForceSendFields is a list of field names (e.g. "ColumnNumber") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "ColumnNumber") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *StackFrame) MarshalJSON() ([]byte, error) {
	type NoMethod StackFrame
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// StackFrames: Represents collection of StackFrames that can be
// truncated.
type StackFrames struct {
	// DroppedFramesCount: The number of dropped stack frames after the
	// maximum size was enforced.
	// If 0 then no frames were dropped.
	DroppedFramesCount int64 `json:"droppedFramesCount,omitempty"`

	// Frame: Stack frames in this stack trace.
	Frame []*StackFrame `json:"frame,omitempty"`

	// ForceSendFields is a list of field names (e.g. "DroppedFramesCount")
	// to unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "DroppedFramesCount") to
	// include in API requests with the JSON null value. By default, fields
	// with empty values are omitted from API requests. However, any field
	// with an empty value appearing in NullFields will be sent to the
	// server as null. It is an error if a field in this list has a
	// non-empty value. This may be used to include null fields in Patch
	// requests.
	NullFields []string `json:"-"`
}

func (s *StackFrames) MarshalJSON() ([]byte, error) {
	type NoMethod StackFrames
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// StackTrace: StackTrace collected in a trace.
type StackTrace struct {
	// StackFrames: Stack frames in this stack trace. A maximum of 128
	// frames are allowed.
	StackFrames *StackFrames `json:"stackFrames,omitempty"`

	// StackTraceHashId: 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`.
	StackTraceHashId uint64 `json:"stackTraceHashId,omitempty,string"`

	// ForceSendFields is a list of field names (e.g. "StackFrames") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "StackFrames") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *StackTrace) MarshalJSON() ([]byte, error) {
	type NoMethod StackTrace
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Status: The `Status` type defines a logical error model that is
// suitable for different
// programming environments, including REST APIs and RPC APIs. It is
// used by
// [gRPC](https://github.com/grpc). The error model is designed to
// be:
//
// - Simple to use and understand for most users
// - Flexible enough to meet unexpected needs
//
// # Overview
//
// The `Status` message contains three pieces of data: error code, error
// message,
// and error details. The error code should be an enum value
// of
// google.rpc.Code, but it may accept additional error codes if needed.
// The
// error message should be a developer-facing English message that
// helps
// developers *understand* and *resolve* the error. If a localized
// user-facing
// error message is needed, put the localized message in the error
// details or
// localize it in the client. The optional error details may contain
// arbitrary
// information about the error. There is a predefined set of error
// detail types
// in the package `google.rpc` that can be used for common error
// conditions.
//
// # Language mapping
//
// The `Status` message is the logical representation of the error
// model, but it
// is not necessarily the actual wire format. When the `Status` message
// is
// exposed in different client libraries and different wire protocols,
// it can be
// mapped differently. For example, it will likely be mapped to some
// exceptions
// in Java, but more likely mapped to some error codes in C.
//
// # Other uses
//
// The error model and the `Status` message can be used in a variety
// of
// environments, either with or without APIs, to provide a
// consistent developer experience across different
// environments.
//
// Example uses of this error model include:
//
// - Partial errors. If a service needs to return partial errors to the
// client,
//     it may embed the `Status` in the normal response to indicate the
// partial
//     errors.
//
// - Workflow errors. A typical workflow has multiple steps. Each step
// may
//     have a `Status` message for error reporting.
//
// - Batch operations. If a client uses batch request and batch
// response, the
//     `Status` message should be used directly inside batch response,
// one for
//     each error sub-response.
//
// - Asynchronous operations. If an API call embeds asynchronous
// operation
//     results in its response, the status of those operations should
// be
//     represented directly using the `Status` message.
//
// - Logging. If some API errors are stored in logs, the message
// `Status` could
//     be used directly after any stripping needed for security/privacy
// reasons.
type Status struct {
	// Code: The status code, which should be an enum value of
	// google.rpc.Code.
	Code int64 `json:"code,omitempty"`

	// Details: A list of messages that carry the error details.  There will
	// be a
	// common set of message types for APIs to use.
	Details []googleapi.RawMessage `json:"details,omitempty"`

	// Message: A developer-facing error message, which should be in
	// English. Any
	// user-facing error message should be localized and sent in
	// the
	// google.rpc.Status.details field, or localized by the client.
	Message string `json:"message,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Code") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Code") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Status) MarshalJSON() ([]byte, error) {
	type NoMethod Status
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// TimeEvent: A time-stamped annotation in the Span.
type TimeEvent struct {
	// Annotation: One or more key:value pairs.
	Annotation *Annotation `json:"annotation,omitempty"`

	// NetworkEvent: An event describing an RPC message sent/received on the
	// network.
	NetworkEvent *NetworkEvent `json:"networkEvent,omitempty"`

	// Time: The timestamp indicating the time the event occurred.
	Time string `json:"time,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Annotation") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Annotation") to include in
	// API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *TimeEvent) MarshalJSON() ([]byte, error) {
	type NoMethod TimeEvent
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// TimeEvents: 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 an RPC message sent/received on the network.
type TimeEvents struct {
	// DroppedAnnotationsCount: The number of dropped annotations after the
	// maximum size was enforced. If
	// 0 then no annotations were dropped.
	DroppedAnnotationsCount int64 `json:"droppedAnnotationsCount,omitempty"`

	// DroppedNetworkEventsCount: The number of dropped network events after
	// the maximum size was enforced.
	// If 0 then no annotations were dropped.
	DroppedNetworkEventsCount int64 `json:"droppedNetworkEventsCount,omitempty"`

	// TimeEvent: A collection of `TimeEvent`s.
	TimeEvent []*TimeEvent `json:"timeEvent,omitempty"`

	// ForceSendFields is a list of field names (e.g.
	// "DroppedAnnotationsCount") to unconditionally include in API
	// requests. By default, fields with empty values are omitted from API
	// requests. However, any non-pointer, non-interface field appearing in
	// ForceSendFields will be sent to the server regardless of whether the
	// field is empty or not. This may be used to include empty fields in
	// Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "DroppedAnnotationsCount")
	// to include in API requests with the JSON null value. By default,
	// fields with empty values are omitted from API requests. However, any
	// field with an empty value appearing in NullFields will be sent to the
	// server as null. It is an error if a field in this list has a
	// non-empty value. This may be used to include null fields in Patch
	// requests.
	NullFields []string `json:"-"`
}

func (s *TimeEvents) MarshalJSON() ([]byte, error) {
	type NoMethod TimeEvents
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Trace: A trace describes how long it takes for an application to
// perform some
// operations. It consists of a set of spans, each representing
// an operation and including time information and operation details.
type Trace struct {
	// Name: The resource name of Trace in the
	// format
	// `projects/PROJECT_ID/traces/TRACE_ID`. `TRACE_ID` is a unique
	// identifier
	// for a trace within a project and is a base16-encoded,
	// case-insensitive
	// string and is required to be 32 char long.
	Name string `json:"name,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Name") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Name") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

func (s *Trace) MarshalJSON() ([]byte, error) {
	type NoMethod Trace
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// TruncatableString: Represents a string value that might be truncated.
type TruncatableString struct {
	// TruncatedCharacterCount: The number of characters truncated from the
	// original string value. If 0 it
	// means that the string value was not truncated.
	TruncatedCharacterCount int64 `json:"truncatedCharacterCount,omitempty"`

	// Value: The truncated string value. E.g. for a string attribute this
	// may have up to
	// 256 bytes.
	Value string `json:"value,omitempty"`

	// ForceSendFields is a list of field names (e.g.
	// "TruncatedCharacterCount") to unconditionally include in API
	// requests. By default, fields with empty values are omitted from API
	// requests. However, any non-pointer, non-interface field appearing in
	// ForceSendFields will be sent to the server regardless of whether the
	// field is empty or not. This may be used to include empty fields in
	// Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "TruncatedCharacterCount")
	// to include in API requests with the JSON null value. By default,
	// fields with empty values are omitted from API requests. However, any
	// field with an empty value appearing in NullFields will be sent to the
	// server as null. It is an error if a field in this list has a
	// non-empty value. This may be used to include null fields in Patch
	// requests.
	NullFields []string `json:"-"`
}

func (s *TruncatableString) MarshalJSON() ([]byte, error) {
	type NoMethod TruncatableString
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// method id "tracing.projects.traces.batchWrite":

type ProjectsTracesBatchWriteCall struct {
	s                      *Service
	name                   string
	batchwritespansrequest *BatchWriteSpansRequest
	urlParams_             gensupport.URLParams
	ctx_                   context.Context
	header_                http.Header
}

// BatchWrite: Sends new spans to Stackdriver Trace or updates existing
// traces. If the
// name of a trace that you send matches that of an existing trace, new
// spans
// are added to the existing trace. Attempt to update existing spans
// results
// undefined behavior. If the name does not match, a new trace is
// created
// with given set of spans.
func (r *ProjectsTracesService) BatchWrite(name string, batchwritespansrequest *BatchWriteSpansRequest) *ProjectsTracesBatchWriteCall {
	c := &ProjectsTracesBatchWriteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.name = name
	c.batchwritespansrequest = batchwritespansrequest
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsTracesBatchWriteCall) Fields(s ...googleapi.Field) *ProjectsTracesBatchWriteCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *ProjectsTracesBatchWriteCall) Context(ctx context.Context) *ProjectsTracesBatchWriteCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsTracesBatchWriteCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsTracesBatchWriteCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.13.7 gdcl/20200203")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.batchwritespansrequest)
	if err != nil {
		return nil, err
	}
	reqHeaders.Set("Content-Type", "application/json")
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2/{+name}/traces:batchWrite")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("POST", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"name": c.name,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "tracing.projects.traces.batchWrite" call.
// Exactly one of *Empty or error will be non-nil. Any non-2xx status
// code is an error. Response headers are in either
// *Empty.ServerResponse.Header or (if a response was returned at all)
// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
// check whether the returned error was because http.StatusNotModified
// was returned.
func (c *ProjectsTracesBatchWriteCall) Do(opts ...googleapi.CallOption) (*Empty, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &Empty{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Sends new spans to Stackdriver Trace or updates existing traces. If the\nname of a trace that you send matches that of an existing trace, new spans\nare added to the existing trace. Attempt to update existing spans results\nundefined behavior. If the name does not match, a new trace is created\nwith given set of spans.",
	//   "flatPath": "v2/projects/{projectsId}/traces:batchWrite",
	//   "httpMethod": "POST",
	//   "id": "tracing.projects.traces.batchWrite",
	//   "parameterOrder": [
	//     "name"
	//   ],
	//   "parameters": {
	//     "name": {
	//       "description": "Name of the project where the spans belong to. Format is\n`projects/PROJECT_ID`.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2/{+name}/traces:batchWrite",
	//   "request": {
	//     "$ref": "BatchWriteSpansRequest"
	//   },
	//   "response": {
	//     "$ref": "Empty"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform",
	//     "https://www.googleapis.com/auth/trace.append"
	//   ]
	// }

}

// method id "tracing.projects.traces.list":

type ProjectsTracesListCall struct {
	s            *Service
	parent       string
	urlParams_   gensupport.URLParams
	ifNoneMatch_ string
	ctx_         context.Context
	header_      http.Header
}

// List: Returns of a list of traces that match the specified filter
// conditions.
func (r *ProjectsTracesService) List(parent string) *ProjectsTracesListCall {
	c := &ProjectsTracesListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.parent = parent
	return c
}

// EndTime sets the optional parameter "endTime": End of the time
// interval (inclusive) during which the trace data was
// collected from the application.
func (c *ProjectsTracesListCall) EndTime(endTime string) *ProjectsTracesListCall {
	c.urlParams_.Set("endTime", endTime)
	return c
}

// Filter sets the optional parameter "filter": An optional filter for
// the request.
// Example:
// `version_label_key:a some_label:some_label_key`
// returns traces from version `a` and has `some_label` with
// `some_label_key`.
func (c *ProjectsTracesListCall) Filter(filter string) *ProjectsTracesListCall {
	c.urlParams_.Set("filter", filter)
	return c
}

// OrderBy sets the optional parameter "orderBy": Field used to sort the
// returned traces.
// Can be one of the following:
//
// *   `trace_id`
// *   `name` (`name` field of root span in the trace)
// *   `duration` (difference between `end_time` and `start_time` fields
// of
//      the root span)
// *   `start` (`start_time` field of the root span)
//
// Descending order can be specified by appending `desc` to the sort
// field
// (for example, `name desc`).
//
// Only one sort field is permitted.
func (c *ProjectsTracesListCall) OrderBy(orderBy string) *ProjectsTracesListCall {
	c.urlParams_.Set("orderBy", orderBy)
	return c
}

// PageSize sets the optional parameter "pageSize": Maximum number of
// traces to return. If not specified or <= 0, the
// implementation selects a reasonable value. The implementation
// may
// return fewer traces than the requested page size.
func (c *ProjectsTracesListCall) PageSize(pageSize int64) *ProjectsTracesListCall {
	c.urlParams_.Set("pageSize", fmt.Sprint(pageSize))
	return c
}

// PageToken sets the optional parameter "pageToken": Token identifying
// the page of results to return. If provided, use the
// value of the `next_page_token` field from a previous request.
func (c *ProjectsTracesListCall) PageToken(pageToken string) *ProjectsTracesListCall {
	c.urlParams_.Set("pageToken", pageToken)
	return c
}

// StartTime sets the optional parameter "startTime": Start of the time
// interval (inclusive) during which the trace data was
// collected from the application.
func (c *ProjectsTracesListCall) StartTime(startTime string) *ProjectsTracesListCall {
	c.urlParams_.Set("startTime", startTime)
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsTracesListCall) Fields(s ...googleapi.Field) *ProjectsTracesListCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *ProjectsTracesListCall) IfNoneMatch(entityTag string) *ProjectsTracesListCall {
	c.ifNoneMatch_ = entityTag
	return c
}

// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *ProjectsTracesListCall) Context(ctx context.Context) *ProjectsTracesListCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsTracesListCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsTracesListCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.13.7 gdcl/20200203")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	if c.ifNoneMatch_ != "" {
		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
	}
	var body io.Reader = nil
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2/{+parent}/traces")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("GET", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"parent": c.parent,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "tracing.projects.traces.list" call.
// Exactly one of *ListTracesResponse or error will be non-nil. Any
// non-2xx status code is an error. Response headers are in either
// *ListTracesResponse.ServerResponse.Header or (if a response was
// returned at all) in error.(*googleapi.Error).Header. Use
// googleapi.IsNotModified to check whether the returned error was
// because http.StatusNotModified was returned.
func (c *ProjectsTracesListCall) Do(opts ...googleapi.CallOption) (*ListTracesResponse, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &ListTracesResponse{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Returns of a list of traces that match the specified filter conditions.",
	//   "flatPath": "v2/projects/{projectsId}/traces",
	//   "httpMethod": "GET",
	//   "id": "tracing.projects.traces.list",
	//   "parameterOrder": [
	//     "parent"
	//   ],
	//   "parameters": {
	//     "endTime": {
	//       "description": "End of the time interval (inclusive) during which the trace data was\ncollected from the application.",
	//       "format": "google-datetime",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "filter": {
	//       "description": "An optional filter for the request.\nExample:\n`version_label_key:a some_label:some_label_key`\nreturns traces from version `a` and has `some_label` with `some_label_key`.",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "orderBy": {
	//       "description": "Field used to sort the returned traces. Optional.\nCan be one of the following:\n\n*   `trace_id`\n*   `name` (`name` field of root span in the trace)\n*   `duration` (difference between `end_time` and `start_time` fields of\n     the root span)\n*   `start` (`start_time` field of the root span)\n\nDescending order can be specified by appending `desc` to the sort field\n(for example, `name desc`).\n\nOnly one sort field is permitted.",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "pageSize": {
	//       "description": "Maximum number of traces to return. If not specified or \u003c= 0, the\nimplementation selects a reasonable value. The implementation may\nreturn fewer traces than the requested page size. Optional.",
	//       "format": "int32",
	//       "location": "query",
	//       "type": "integer"
	//     },
	//     "pageToken": {
	//       "description": "Token identifying the page of results to return. If provided, use the\nvalue of the `next_page_token` field from a previous request. Optional.",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "parent": {
	//       "description": "ID of the Cloud project where the trace data is stored which is\n`projects/PROJECT_ID`.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     },
	//     "startTime": {
	//       "description": "Start of the time interval (inclusive) during which the trace data was\ncollected from the application.",
	//       "format": "google-datetime",
	//       "location": "query",
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2/{+parent}/traces",
	//   "response": {
	//     "$ref": "ListTracesResponse"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform",
	//     "https://www.googleapis.com/auth/trace.readonly"
	//   ]
	// }

}

// Pages invokes f for each page of results.
// A non-nil error returned from f will halt the iteration.
// The provided context supersedes any context provided to the Context method.
func (c *ProjectsTracesListCall) Pages(ctx context.Context, f func(*ListTracesResponse) error) error {
	c.ctx_ = ctx
	defer c.PageToken(c.urlParams_.Get("pageToken")) // reset paging to original point
	for {
		x, err := c.Do()
		if err != nil {
			return err
		}
		if err := f(x); err != nil {
			return err
		}
		if x.NextPageToken == "" {
			return nil
		}
		c.PageToken(x.NextPageToken)
	}
}

// method id "tracing.projects.traces.listSpans":

type ProjectsTracesListSpansCall struct {
	s            *Service
	parent       string
	urlParams_   gensupport.URLParams
	ifNoneMatch_ string
	ctx_         context.Context
	header_      http.Header
}

// ListSpans: Returns a list of spans within a trace.
func (r *ProjectsTracesService) ListSpans(parent string) *ProjectsTracesListSpansCall {
	c := &ProjectsTracesListSpansCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.parent = parent
	return c
}

// PageToken sets the optional parameter "pageToken": Token identifying
// the page of results to return. If provided, use the
// value of the `nextPageToken` field from a previous request.
func (c *ProjectsTracesListSpansCall) PageToken(pageToken string) *ProjectsTracesListSpansCall {
	c.urlParams_.Set("pageToken", pageToken)
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsTracesListSpansCall) Fields(s ...googleapi.Field) *ProjectsTracesListSpansCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *ProjectsTracesListSpansCall) IfNoneMatch(entityTag string) *ProjectsTracesListSpansCall {
	c.ifNoneMatch_ = entityTag
	return c
}

// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *ProjectsTracesListSpansCall) Context(ctx context.Context) *ProjectsTracesListSpansCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsTracesListSpansCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsTracesListSpansCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.13.7 gdcl/20200203")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	if c.ifNoneMatch_ != "" {
		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
	}
	var body io.Reader = nil
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2/{+parent}:listSpans")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("GET", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"parent": c.parent,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "tracing.projects.traces.listSpans" call.
// Exactly one of *ListSpansResponse or error will be non-nil. Any
// non-2xx status code is an error. Response headers are in either
// *ListSpansResponse.ServerResponse.Header or (if a response was
// returned at all) in error.(*googleapi.Error).Header. Use
// googleapi.IsNotModified to check whether the returned error was
// because http.StatusNotModified was returned.
func (c *ProjectsTracesListSpansCall) Do(opts ...googleapi.CallOption) (*ListSpansResponse, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &ListSpansResponse{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Returns a list of spans within a trace.",
	//   "flatPath": "v2/projects/{projectsId}/traces/{tracesId}:listSpans",
	//   "httpMethod": "GET",
	//   "id": "tracing.projects.traces.listSpans",
	//   "parameterOrder": [
	//     "parent"
	//   ],
	//   "parameters": {
	//     "pageToken": {
	//       "description": "Token identifying the page of results to return. If provided, use the\nvalue of the `nextPageToken` field from a previous request. Optional.",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "parent": {
	//       "description": "ID of the trace for which to list child spans. Format is\n`projects/PROJECT_ID/traces/TRACE_ID`.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+/traces/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2/{+parent}:listSpans",
	//   "response": {
	//     "$ref": "ListSpansResponse"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform",
	//     "https://www.googleapis.com/auth/trace.readonly"
	//   ]
	// }

}

// Pages invokes f for each page of results.
// A non-nil error returned from f will halt the iteration.
// The provided context supersedes any context provided to the Context method.
func (c *ProjectsTracesListSpansCall) Pages(ctx context.Context, f func(*ListSpansResponse) error) error {
	c.ctx_ = ctx
	defer c.PageToken(c.urlParams_.Get("pageToken")) // reset paging to original point
	for {
		x, err := c.Do()
		if err != nil {
			return err
		}
		if err := f(x); err != nil {
			return err
		}
		if x.NextPageToken == "" {
			return nil
		}
		c.PageToken(x.NextPageToken)
	}
}

// method id "tracing.projects.traces.spans.create":

type ProjectsTracesSpansCreateCall struct {
	s          *Service
	nameid     string
	span       *Span
	urlParams_ gensupport.URLParams
	ctx_       context.Context
	header_    http.Header
}

// Create: Creates a new Span.
func (r *ProjectsTracesSpansService) Create(nameid string, span *Span) *ProjectsTracesSpansCreateCall {
	c := &ProjectsTracesSpansCreateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.nameid = nameid
	c.span = span
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsTracesSpansCreateCall) Fields(s ...googleapi.Field) *ProjectsTracesSpansCreateCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// Context sets the context to be used in this call's Do method. Any
// pending HTTP request will be aborted if the provided context is
// canceled.
func (c *ProjectsTracesSpansCreateCall) Context(ctx context.Context) *ProjectsTracesSpansCreateCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsTracesSpansCreateCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsTracesSpansCreateCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.13.7 gdcl/20200203")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.span)
	if err != nil {
		return nil, err
	}
	reqHeaders.Set("Content-Type", "application/json")
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2/{+name}")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("PUT", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"name": c.nameid,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "tracing.projects.traces.spans.create" call.
// Exactly one of *Span or error will be non-nil. Any non-2xx status
// code is an error. Response headers are in either
// *Span.ServerResponse.Header or (if a response was returned at all) in
// error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check
// whether the returned error was because http.StatusNotModified was
// returned.
func (c *ProjectsTracesSpansCreateCall) Do(opts ...googleapi.CallOption) (*Span, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &Span{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Creates a new Span.",
	//   "flatPath": "v2/projects/{projectsId}/traces/{tracesId}/spans/{spansId}",
	//   "httpMethod": "PUT",
	//   "id": "tracing.projects.traces.spans.create",
	//   "parameterOrder": [
	//     "name"
	//   ],
	//   "parameters": {
	//     "name": {
	//       "description": "The resource name of Span in the format\n`projects/PROJECT_ID/traces/TRACE_ID/spans/SPAN_ID`.\n`TRACE_ID` is a unique identifier for a trace within a project and is a\nbase16-encoded, case-insensitive string and is required to be 32 char long.\n`SPAN_ID` is a unique identifier for a span within a trace. It is a\nbase 16-encoded, case-insensitive string of a 8-bytes array and is required\nto be 16 char long.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+/traces/[^/]+/spans/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2/{+name}",
	//   "request": {
	//     "$ref": "Span"
	//   },
	//   "response": {
	//     "$ref": "Span"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform",
	//     "https://www.googleapis.com/auth/trace.append"
	//   ]
	// }

}