a2apb

type A2AServiceClient interface {
	// Send a message to the agent. This is a blocking call that will return the
	// task once it is completed, or a LRO if requested.
	SendMessage(ctx context.Context, in *SendMessageRequest, opts ...grpc.CallOption) (*SendMessageResponse, error)
	// SendStreamingMessage is a streaming call that will return a stream of
	// task update events until the Task is in an interrupted or terminal state.
	SendStreamingMessage(ctx context.Context, in *SendMessageRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[StreamResponse], error)
	// Get the current state of a task from the agent.
	GetTask(ctx context.Context, in *GetTaskRequest, opts ...grpc.CallOption) (*Task, error)
	// List tasks with optional filtering and pagination.
	ListTasks(ctx context.Context, in *ListTasksRequest, opts ...grpc.CallOption) (*ListTasksResponse, error)
	// Cancel a task from the agent. If supported one should expect no
	// more task updates for the task.
	CancelTask(ctx context.Context, in *CancelTaskRequest, opts ...grpc.CallOption) (*Task, error)
	// TaskSubscription is a streaming call that will return a stream of task
	// update events. This attaches the stream to an existing in process task.
	// If the task is complete the stream will return the completed task (like
	// GetTask) and close the stream.
	TaskSubscription(ctx context.Context, in *TaskSubscriptionRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[StreamResponse], error)
	// Set a push notification config for a task.
	CreateTaskPushNotificationConfig(ctx context.Context, in *CreateTaskPushNotificationConfigRequest, opts ...grpc.CallOption) (*TaskPushNotificationConfig, error)
	// Get a push notification config for a task.
	GetTaskPushNotificationConfig(ctx context.Context, in *GetTaskPushNotificationConfigRequest, opts ...grpc.CallOption) (*TaskPushNotificationConfig, error)
	// Get a list of push notifications configured for a task.
	ListTaskPushNotificationConfig(ctx context.Context, in *ListTaskPushNotificationConfigRequest, opts ...grpc.CallOption) (*ListTaskPushNotificationConfigResponse, error)
	// GetAgentCard returns the agent card for the agent.
	GetAgentCard(ctx context.Context, in *GetAgentCardRequest, opts ...grpc.CallOption) (*AgentCard, error)
	// Delete a push notification config for a task.
	DeleteTaskPushNotificationConfig(ctx context.Context, in *DeleteTaskPushNotificationConfigRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
}

type A2AServiceServer interface {
	// Send a message to the agent. This is a blocking call that will return the
	// task once it is completed, or a LRO if requested.
	SendMessage(context.Context, *SendMessageRequest) (*SendMessageResponse, error)
	// SendStreamingMessage is a streaming call that will return a stream of
	// task update events until the Task is in an interrupted or terminal state.
	SendStreamingMessage(*SendMessageRequest, grpc.ServerStreamingServer[StreamResponse]) error
	// Get the current state of a task from the agent.
	GetTask(context.Context, *GetTaskRequest) (*Task, error)
	// List tasks with optional filtering and pagination.
	ListTasks(context.Context, *ListTasksRequest) (*ListTasksResponse, error)
	// Cancel a task from the agent. If supported one should expect no
	// more task updates for the task.
	CancelTask(context.Context, *CancelTaskRequest) (*Task, error)
	// TaskSubscription is a streaming call that will return a stream of task
	// update events. This attaches the stream to an existing in process task.
	// If the task is complete the stream will return the completed task (like
	// GetTask) and close the stream.
	TaskSubscription(*TaskSubscriptionRequest, grpc.ServerStreamingServer[StreamResponse]) error
	// Set a push notification config for a task.
	CreateTaskPushNotificationConfig(context.Context, *CreateTaskPushNotificationConfigRequest) (*TaskPushNotificationConfig, error)
	// Get a push notification config for a task.
	GetTaskPushNotificationConfig(context.Context, *GetTaskPushNotificationConfigRequest) (*TaskPushNotificationConfig, error)
	// Get a list of push notifications configured for a task.
	ListTaskPushNotificationConfig(context.Context, *ListTaskPushNotificationConfigRequest) (*ListTaskPushNotificationConfigResponse, error)
	// GetAgentCard returns the agent card for the agent.
	GetAgentCard(context.Context, *GetAgentCardRequest) (*AgentCard, error)
	// Delete a push notification config for a task.
	DeleteTaskPushNotificationConfig(context.Context, *DeleteTaskPushNotificationConfigRequest) (*emptypb.Empty, error)
	// contains filtered or unexported methods
}

type A2AService_SendStreamingMessageClient = grpc.ServerStreamingClient[StreamResponse]

type A2AService_SendStreamingMessageServer = grpc.ServerStreamingServer[StreamResponse]

type A2AService_TaskSubscriptionClient = grpc.ServerStreamingClient[StreamResponse]

type A2AService_TaskSubscriptionServer = grpc.ServerStreamingServer[StreamResponse]

type APIKeySecurityScheme struct {

	// Description of this security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// Location of the API key, valid values are "query", "header", or "cookie"
	Location string `protobuf:"bytes,2,opt,name=location,proto3" json:"location,omitempty"`
	// Name of the header, query or cookie parameter to be used.
	Name string `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type AgentCapabilities struct {

	// If the agent will support streaming responses
	Streaming bool `protobuf:"varint,1,opt,name=streaming,proto3" json:"streaming,omitempty"`
	// If the agent can send push notifications to the clients webhook
	PushNotifications bool `protobuf:"varint,2,opt,name=push_notifications,json=pushNotifications,proto3" json:"push_notifications,omitempty"`
	// Extensions supported by this agent.
	Extensions []*AgentExtension `protobuf:"bytes,3,rep,name=extensions,proto3" json:"extensions,omitempty"`
	// If the agent provides a history of state transitions for a task.
	StateTransitionHistory bool `` /* 130-byte string literal not displayed */
	// contains filtered or unexported fields
}

type AgentCard struct {

	// The version of the A2A protocol this agent supports.
	ProtocolVersion string `protobuf:"bytes,16,opt,name=protocol_version,json=protocolVersion,proto3" json:"protocol_version,omitempty"`
	// A human readable name for the agent.
	// Example: "Recipe Agent"
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// A description of the agent's domain of action/solution space.
	// Example: "Agent that helps users with recipes and cooking."
	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
	// A URL to the address the agent is hosted at. This represents the
	// preferred endpoint as declared by the agent.
	Url string `protobuf:"bytes,3,opt,name=url,proto3" json:"url,omitempty"`
	// The transport of the preferred endpoint. If empty, defaults to JSONRPC.
	PreferredTransport string `protobuf:"bytes,14,opt,name=preferred_transport,json=preferredTransport,proto3" json:"preferred_transport,omitempty"`
	// Announcement of additional supported transports. Client can use any of
	// the supported transports.
	AdditionalInterfaces []*AgentInterface `protobuf:"bytes,15,rep,name=additional_interfaces,json=additionalInterfaces,proto3" json:"additional_interfaces,omitempty"`
	// The service provider of the agent.
	Provider *AgentProvider `protobuf:"bytes,4,opt,name=provider,proto3" json:"provider,omitempty"`
	// The version of the agent.
	// Example: "1.0.0"
	Version string `protobuf:"bytes,5,opt,name=version,proto3" json:"version,omitempty"`
	// A url to provide additional documentation about the agent.
	DocumentationUrl string `protobuf:"bytes,6,opt,name=documentation_url,json=documentationUrl,proto3" json:"documentation_url,omitempty"`
	// A2A Capability set supported by the agent.
	Capabilities *AgentCapabilities `protobuf:"bytes,7,opt,name=capabilities,proto3" json:"capabilities,omitempty"`
	// The security scheme details used for authenticating with this agent.
	SecuritySchemes map[string]*SecurityScheme `` /* 180-byte string literal not displayed */
	// protolint:disable REPEATED_FIELD_NAMES_PLURALIZED
	// Security requirements for contacting the agent.
	// This list can be seen as an OR of ANDs. Each object in the list describes
	// one possible set of security requirements that must be present on a
	// request. This allows specifying, for example, "callers must either use
	// OAuth OR an API Key AND mTLS."
	// Example:
	//
	//	security {
	//	  schemes { key: "oauth" value { list: ["read"] } }
	//	}
	//
	//	security {
	//	  schemes { key: "api-key" }
	//	  schemes { key: "mtls" }
	//	}
	Security []*Security `protobuf:"bytes,9,rep,name=security,proto3" json:"security,omitempty"`
	// protolint:enable REPEATED_FIELD_NAMES_PLURALIZED
	// The set of interaction modes that the agent supports across all skills.
	// This can be overridden per skill. Defined as mime types.
	DefaultInputModes []string `protobuf:"bytes,10,rep,name=default_input_modes,json=defaultInputModes,proto3" json:"default_input_modes,omitempty"`
	// The mime types supported as outputs from this agent.
	DefaultOutputModes []string `protobuf:"bytes,11,rep,name=default_output_modes,json=defaultOutputModes,proto3" json:"default_output_modes,omitempty"`
	// Skills represent a unit of ability an agent can perform. This may
	// somewhat abstract but represents a more focused set of actions that the
	// agent is highly likely to succeed at.
	Skills []*AgentSkill `protobuf:"bytes,12,rep,name=skills,proto3" json:"skills,omitempty"`
	// Whether the agent supports providing an extended agent card when
	// the user is authenticated, i.e. is the card from .well-known
	// different than the card from GetAgentCard.
	SupportsAuthenticatedExtendedCard bool `` /* 166-byte string literal not displayed */
	// JSON Web Signatures computed for this AgentCard.
	Signatures []*AgentCardSignature `protobuf:"bytes,17,rep,name=signatures,proto3" json:"signatures,omitempty"`
	// An optional URL to an icon for the agent.
	IconUrl string `protobuf:"bytes,18,opt,name=icon_url,json=iconUrl,proto3" json:"icon_url,omitempty"`
	// contains filtered or unexported fields
}

type AgentCardSignature struct {

	// The protected JWS header for the signature. This is always a
	// base64url-encoded JSON object. Required.
	Protected string `protobuf:"bytes,1,opt,name=protected,proto3" json:"protected,omitempty"`
	// The computed signature, base64url-encoded. Required.
	Signature string `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
	// The unprotected JWS header values.
	Header *structpb.Struct `protobuf:"bytes,3,opt,name=header,proto3" json:"header,omitempty"`
	// contains filtered or unexported fields
}

type AgentExtension struct {

	// The URI of the extension.
	// Example: "https://developers.google.com/identity/protocols/oauth2"
	Uri string `protobuf:"bytes,1,opt,name=uri,proto3" json:"uri,omitempty"`
	// A description of how this agent uses this extension.
	// Example: "Google OAuth 2.0 authentication"
	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
	// Whether the client must follow specific requirements of the extension.
	// Example: false
	Required bool `protobuf:"varint,3,opt,name=required,proto3" json:"required,omitempty"`
	// Optional configuration for the extension.
	Params *structpb.Struct `protobuf:"bytes,4,opt,name=params,proto3" json:"params,omitempty"`
	// contains filtered or unexported fields
}

type AgentInterface struct {

	// The url this interface is found at.
	Url string `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"`
	// The transport supported this url. This is an open form string, to be
	// easily extended for many transport protocols. The core ones officially
	// supported are JSONRPC, GRPC and HTTP+JSON.
	Transport string `protobuf:"bytes,2,opt,name=transport,proto3" json:"transport,omitempty"`
	// contains filtered or unexported fields
}

type AgentProvider struct {

	// The providers reference url
	// Example: "https://ai.google.dev"
	Url string `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"`
	// The providers organization name
	// Example: "Google"
	Organization string `protobuf:"bytes,2,opt,name=organization,proto3" json:"organization,omitempty"`
	// contains filtered or unexported fields
}

type AgentSkill struct {

	// Unique identifier of the skill within this agent.
	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
	// A human readable name for the skill.
	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
	// A human (or llm) readable description of the skill
	// details and behaviors.
	Description string `protobuf:"bytes,3,opt,name=description,proto3" json:"description,omitempty"`
	// A set of tags for the skill to enhance categorization/utilization.
	// Example: ["cooking", "customer support", "billing"]
	Tags []string `protobuf:"bytes,4,rep,name=tags,proto3" json:"tags,omitempty"`
	// A set of example queries that this skill is designed to address.
	// These examples should help the caller to understand how to craft requests
	// to the agent to achieve specific goals.
	// Example: ["I need a recipe for bread"]
	Examples []string `protobuf:"bytes,5,rep,name=examples,proto3" json:"examples,omitempty"`
	// Possible input modalities supported.
	InputModes []string `protobuf:"bytes,6,rep,name=input_modes,json=inputModes,proto3" json:"input_modes,omitempty"`
	// Possible output modalities produced
	OutputModes []string `protobuf:"bytes,7,rep,name=output_modes,json=outputModes,proto3" json:"output_modes,omitempty"`
	// protolint:disable REPEATED_FIELD_NAMES_PLURALIZED
	// Security schemes necessary for the agent to leverage this skill.
	// As in the overall AgentCard.security, this list represents a logical OR of
	// security requirement objects. Each object is a set of security schemes
	// that must be used together (a logical AND).
	Security []*Security `protobuf:"bytes,8,rep,name=security,proto3" json:"security,omitempty"` // protolint:enable REPEATED_FIELD_NAMES_PLURALIZED
	// contains filtered or unexported fields
}

type Artifact struct {

	// Unique identifier (e.g. UUID) for the artifact. It must be at least unique
	// within a task.
	ArtifactId string `protobuf:"bytes,1,opt,name=artifact_id,json=artifactId,proto3" json:"artifact_id,omitempty"`
	// A human readable name for the artifact.
	Name string `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
	// A human readable description of the artifact, optional.
	Description string `protobuf:"bytes,4,opt,name=description,proto3" json:"description,omitempty"`
	// The content of the artifact.
	Parts []*Part `protobuf:"bytes,5,rep,name=parts,proto3" json:"parts,omitempty"`
	// Optional metadata included with the artifact.
	Metadata *structpb.Struct `protobuf:"bytes,6,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// The URIs of extensions that are present or contributed to this Artifact.
	Extensions []string `protobuf:"bytes,7,rep,name=extensions,proto3" json:"extensions,omitempty"`
	// contains filtered or unexported fields
}

type AuthenticationInfo struct {

	// Supported authentication schemes - e.g. Basic, Bearer, etc
	Schemes []string `protobuf:"bytes,1,rep,name=schemes,proto3" json:"schemes,omitempty"`
	// Optional credentials
	Credentials string `protobuf:"bytes,2,opt,name=credentials,proto3" json:"credentials,omitempty"`
	// contains filtered or unexported fields
}

type AuthorizationCodeOAuthFlow struct {

	// The authorization URL to be used for this flow. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS
	AuthorizationUrl string `protobuf:"bytes,1,opt,name=authorization_url,json=authorizationUrl,proto3" json:"authorization_url,omitempty"`
	// The token URL to be used for this flow. This MUST be in the form of a URL.
	// The OAuth2 standard requires the use of TLS.
	TokenUrl string `protobuf:"bytes,2,opt,name=token_url,json=tokenUrl,proto3" json:"token_url,omitempty"`
	// The URL to be used for obtaining refresh tokens. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS.
	RefreshUrl string `protobuf:"bytes,3,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme. A map between the
	// scope name and a short description for it. The map MAY be empty.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type CancelTaskRequest struct {

	// The resource name of the task to cancel.
	// Format: tasks/{task_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type ClientCredentialsOAuthFlow struct {

	// The token URL to be used for this flow. This MUST be in the form of a URL.
	// The OAuth2 standard requires the use of TLS.
	TokenUrl string `protobuf:"bytes,1,opt,name=token_url,json=tokenUrl,proto3" json:"token_url,omitempty"`
	// The URL to be used for obtaining refresh tokens. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS.
	RefreshUrl string `protobuf:"bytes,2,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme. A map between the
	// scope name and a short description for it. The map MAY be empty.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type CreateTaskPushNotificationConfigRequest struct {

	// The parent task resource for this config.
	// Format: tasks/{task_id}
	Parent string `protobuf:"bytes,1,opt,name=parent,proto3" json:"parent,omitempty"`
	// The ID for the new config.
	ConfigId string `protobuf:"bytes,2,opt,name=config_id,json=configId,proto3" json:"config_id,omitempty"`
	// The configuration to create.
	Config *TaskPushNotificationConfig `protobuf:"bytes,3,opt,name=config,proto3" json:"config,omitempty"`
	// contains filtered or unexported fields
}

type DataPart struct {
	Data *structpb.Struct `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
	// contains filtered or unexported fields
}

type DeleteTaskPushNotificationConfigRequest struct {

	// The resource name of the config to delete.
	// Format: tasks/{task_id}/pushNotificationConfigs/{config_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type FilePart struct {

	// Types that are valid to be assigned to File:
	//
	//	*FilePart_FileWithUri
	//	*FilePart_FileWithBytes
	File     isFilePart_File `protobuf_oneof:"file"`
	MimeType string          `protobuf:"bytes,3,opt,name=mime_type,json=mimeType,proto3" json:"mime_type,omitempty"`
	Name     string          `protobuf:"bytes,4,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type FilePart_FileWithBytes struct {
	FileWithBytes []byte `protobuf:"bytes,2,opt,name=file_with_bytes,json=fileWithBytes,proto3,oneof"`
}

type FilePart_FileWithUri struct {
	FileWithUri string `protobuf:"bytes,1,opt,name=file_with_uri,json=fileWithUri,proto3,oneof"`
}

type GetAgentCardRequest struct {
	// contains filtered or unexported fields
}

type GetTaskPushNotificationConfigRequest struct {

	// The resource name of the config to retrieve.
	// Format: tasks/{task_id}/pushNotificationConfigs/{config_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type GetTaskRequest struct {

	// The resource name of the task.
	// Format: tasks/{task_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// The number of most recent messages from the task's history to retrieve.
	HistoryLength int32 `protobuf:"varint,2,opt,name=history_length,json=historyLength,proto3" json:"history_length,omitempty"`
	// contains filtered or unexported fields
}

type HTTPAuthSecurityScheme struct {

	// Description of this security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// The name of the HTTP Authentication scheme to be used in the
	// Authorization header as defined in RFC7235. The values used SHOULD be
	// registered in the IANA Authentication Scheme registry.
	// The value is case-insensitive, as defined in RFC7235.
	Scheme string `protobuf:"bytes,2,opt,name=scheme,proto3" json:"scheme,omitempty"`
	// A hint to the client to identify how the bearer token is formatted.
	// Bearer tokens are usually generated by an authorization server, so
	// this information is primarily for documentation purposes.
	BearerFormat string `protobuf:"bytes,3,opt,name=bearer_format,json=bearerFormat,proto3" json:"bearer_format,omitempty"`
	// contains filtered or unexported fields
}

type ImplicitOAuthFlow struct {

	// The authorization URL to be used for this flow. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS
	AuthorizationUrl string `protobuf:"bytes,1,opt,name=authorization_url,json=authorizationUrl,proto3" json:"authorization_url,omitempty"`
	// The URL to be used for obtaining refresh tokens. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS.
	RefreshUrl string `protobuf:"bytes,2,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme. A map between the
	// scope name and a short description for it. The map MAY be empty.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type ListTaskPushNotificationConfigRequest struct {

	// The parent task resource.
	// Format: tasks/{task_id}
	Parent string `protobuf:"bytes,1,opt,name=parent,proto3" json:"parent,omitempty"`
	// For AIP-158 these fields are present. Usually not used/needed.
	// The maximum number of configurations to return.
	// If unspecified, all configs will be returned.
	PageSize int32 `protobuf:"varint,2,opt,name=page_size,json=pageSize,proto3" json:"page_size,omitempty"`
	// A page token received from a previous
	// ListTaskPushNotificationConfigRequest call.
	// Provide this to retrieve the subsequent page.
	// When paginating, all other parameters provided to
	// `ListTaskPushNotificationConfigRequest` must match the call that provided
	// the page token.
	PageToken string `protobuf:"bytes,3,opt,name=page_token,json=pageToken,proto3" json:"page_token,omitempty"`
	// contains filtered or unexported fields
}

type ListTaskPushNotificationConfigResponse struct {

	// The list of push notification configurations.
	Configs []*TaskPushNotificationConfig `protobuf:"bytes,1,rep,name=configs,proto3" json:"configs,omitempty"`
	// A token, which can be sent as `page_token` to retrieve the next page.
	// If this field is omitted, there are no subsequent pages.
	NextPageToken string `protobuf:"bytes,2,opt,name=next_page_token,json=nextPageToken,proto3" json:"next_page_token,omitempty"`
	// contains filtered or unexported fields
}

type ListTasksRequest struct {

	// Filter tasks by context ID to get tasks from a specific conversation
	// or session.
	ContextId string `protobuf:"bytes,1,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// Filter tasks by their current status state.
	Status TaskState `protobuf:"varint,2,opt,name=status,proto3,enum=a2a.v1.TaskState" json:"status,omitempty"`
	// Maximum number of tasks to return. Must be between 1 and 100.
	// Defaults to 50 if not specified.
	PageSize int32 `protobuf:"varint,3,opt,name=page_size,json=pageSize,proto3" json:"page_size,omitempty"`
	// Token for pagination. Use the next_page_token from a previous
	// ListTasksResponse.
	PageToken string `protobuf:"bytes,4,opt,name=page_token,json=pageToken,proto3" json:"page_token,omitempty"`
	// Number of recent messages to include in each task's history.
	// Must be non-negative. Defaults to 0 if not specified.
	HistoryLength int32 `protobuf:"varint,5,opt,name=history_length,json=historyLength,proto3" json:"history_length,omitempty"`
	// Filter tasks updated after this timestamp. Only tasks with a last
	// updated time greater than or equal to this value will be returned.
	LastUpdatedTime *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=last_updated_time,json=lastUpdatedTime,proto3" json:"last_updated_time,omitempty"`
	// Whether to include artifacts in the returned tasks.
	// Defaults to false to reduce payload size.
	IncludeArtifacts bool `protobuf:"varint,7,opt,name=include_artifacts,json=includeArtifacts,proto3" json:"include_artifacts,omitempty"`
	// contains filtered or unexported fields
}

type ListTasksResponse struct {

	// Array of tasks matching the specified criteria.
	Tasks []*Task `protobuf:"bytes,1,rep,name=tasks,proto3" json:"tasks,omitempty"`
	// Token for retrieving the next page of results.
	// Empty string if no more results.
	NextPageToken string `protobuf:"bytes,2,opt,name=next_page_token,json=nextPageToken,proto3" json:"next_page_token,omitempty"`
	// Total number of tasks available (before pagination).
	TotalSize int32 `protobuf:"varint,3,opt,name=total_size,json=totalSize,proto3" json:"total_size,omitempty"`
	// contains filtered or unexported fields
}

type Message struct {

	// The unique identifier (e.g. UUID)of the message. This is required and
	// created by the message creator.
	MessageId string `protobuf:"bytes,1,opt,name=message_id,json=messageId,proto3" json:"message_id,omitempty"`
	// The context id of the message. This is optional and if set, the message
	// will be associated with the given context.
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// The task id of the message. This is optional and if set, the message
	// will be associated with the given task.
	TaskId string `protobuf:"bytes,3,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// A role for the message.
	Role Role `protobuf:"varint,4,opt,name=role,proto3,enum=a2a.v1.Role" json:"role,omitempty"`
	// protolint:disable REPEATED_FIELD_NAMES_PLURALIZED
	// Parts is the container of the message content.
	Parts []*Part `protobuf:"bytes,5,rep,name=parts,proto3" json:"parts,omitempty"`
	// protolint:enable REPEATED_FIELD_NAMES_PLURALIZED
	// Any optional metadata to provide along with the message.
	Metadata *structpb.Struct `protobuf:"bytes,6,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// The URIs of extensions that are present or contributed to this Message.
	Extensions []string `protobuf:"bytes,7,rep,name=extensions,proto3" json:"extensions,omitempty"`
	// A list of task IDs that this message references for additional context.
	ReferenceTaskIds []string `protobuf:"bytes,8,rep,name=reference_task_ids,json=referenceTaskIds,proto3" json:"reference_task_ids,omitempty"`
	// contains filtered or unexported fields
}

type MutualTlsSecurityScheme struct {

	// Description of this security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// contains filtered or unexported fields
}

type OAuth2SecurityScheme struct {

	// Description of this security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// An object containing configuration information for the flow types supported
	Flows *OAuthFlows `protobuf:"bytes,2,opt,name=flows,proto3" json:"flows,omitempty"`
	// URL to the oauth2 authorization server metadata
	// [RFC8414](https://datatracker.ietf.org/doc/html/rfc8414). TLS is required.
	Oauth2MetadataUrl string `protobuf:"bytes,3,opt,name=oauth2_metadata_url,json=oauth2MetadataUrl,proto3" json:"oauth2_metadata_url,omitempty"`
	// contains filtered or unexported fields
}

type OAuthFlows struct {

	// Types that are valid to be assigned to Flow:
	//
	//	*OAuthFlows_AuthorizationCode
	//	*OAuthFlows_ClientCredentials
	//	*OAuthFlows_Implicit
	//	*OAuthFlows_Password
	Flow isOAuthFlows_Flow `protobuf_oneof:"flow"`
	// contains filtered or unexported fields
}

type OAuthFlows_AuthorizationCode struct {
	AuthorizationCode *AuthorizationCodeOAuthFlow `protobuf:"bytes,1,opt,name=authorization_code,json=authorizationCode,proto3,oneof"`
}

type OAuthFlows_ClientCredentials struct {
	ClientCredentials *ClientCredentialsOAuthFlow `protobuf:"bytes,2,opt,name=client_credentials,json=clientCredentials,proto3,oneof"`
}

type OAuthFlows_Implicit struct {
	Implicit *ImplicitOAuthFlow `protobuf:"bytes,3,opt,name=implicit,proto3,oneof"`
}

type OAuthFlows_Password struct {
	Password *PasswordOAuthFlow `protobuf:"bytes,4,opt,name=password,proto3,oneof"`
}

type OpenIdConnectSecurityScheme struct {

	// Description of this security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// Well-known URL to discover the [[OpenID-Connect-Discovery]] provider
	// metadata.
	OpenIdConnectUrl string `protobuf:"bytes,2,opt,name=open_id_connect_url,json=openIdConnectUrl,proto3" json:"open_id_connect_url,omitempty"`
	// contains filtered or unexported fields
}

type Part struct {

	// Types that are valid to be assigned to Part:
	//
	//	*Part_Text
	//	*Part_File
	//	*Part_Data
	Part isPart_Part `protobuf_oneof:"part"`
	// Optional metadata associated with this part.
	Metadata *structpb.Struct `protobuf:"bytes,4,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type Part_Data struct {
	Data *DataPart `protobuf:"bytes,3,opt,name=data,proto3,oneof"`
}

type Part_File struct {
	File *FilePart `protobuf:"bytes,2,opt,name=file,proto3,oneof"`
}

type Part_Text struct {
	Text string `protobuf:"bytes,1,opt,name=text,proto3,oneof"`
}

type PasswordOAuthFlow struct {

	// The token URL to be used for this flow. This MUST be in the form of a URL.
	// The OAuth2 standard requires the use of TLS.
	TokenUrl string `protobuf:"bytes,1,opt,name=token_url,json=tokenUrl,proto3" json:"token_url,omitempty"`
	// The URL to be used for obtaining refresh tokens. This MUST be in the
	// form of a URL. The OAuth2 standard requires the use of TLS.
	RefreshUrl string `protobuf:"bytes,2,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme. A map between the
	// scope name and a short description for it. The map MAY be empty.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type PushNotificationConfig struct {

	// A unique identifier (e.g. UUID) for this push notification.
	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
	// Url to send the notification too
	Url string `protobuf:"bytes,2,opt,name=url,proto3" json:"url,omitempty"`
	// Token unique for this task/session
	Token string `protobuf:"bytes,3,opt,name=token,proto3" json:"token,omitempty"`
	// Information about the authentication to sent with the notification
	Authentication *AuthenticationInfo `protobuf:"bytes,4,opt,name=authentication,proto3" json:"authentication,omitempty"`
	// contains filtered or unexported fields
}

type Role int32

type Security struct {
	Schemes map[string]*StringList `` /* 141-byte string literal not displayed */
	// contains filtered or unexported fields
}

type SecurityScheme struct {

	// Types that are valid to be assigned to Scheme:
	//
	//	*SecurityScheme_ApiKeySecurityScheme
	//	*SecurityScheme_HttpAuthSecurityScheme
	//	*SecurityScheme_Oauth2SecurityScheme
	//	*SecurityScheme_OpenIdConnectSecurityScheme
	//	*SecurityScheme_MtlsSecurityScheme
	Scheme isSecurityScheme_Scheme `protobuf_oneof:"scheme"`
	// contains filtered or unexported fields
}

type SecurityScheme_ApiKeySecurityScheme struct {
	ApiKeySecurityScheme *APIKeySecurityScheme `protobuf:"bytes,1,opt,name=api_key_security_scheme,json=apiKeySecurityScheme,proto3,oneof"`
}

type SecurityScheme_HttpAuthSecurityScheme struct {
	HttpAuthSecurityScheme *HTTPAuthSecurityScheme `protobuf:"bytes,2,opt,name=http_auth_security_scheme,json=httpAuthSecurityScheme,proto3,oneof"`
}

type SecurityScheme_MtlsSecurityScheme struct {
	MtlsSecurityScheme *MutualTlsSecurityScheme `protobuf:"bytes,5,opt,name=mtls_security_scheme,json=mtlsSecurityScheme,proto3,oneof"`
}

type SecurityScheme_Oauth2SecurityScheme struct {
	Oauth2SecurityScheme *OAuth2SecurityScheme `protobuf:"bytes,3,opt,name=oauth2_security_scheme,json=oauth2SecurityScheme,proto3,oneof"`
}

type SecurityScheme_OpenIdConnectSecurityScheme struct {
	OpenIdConnectSecurityScheme *OpenIdConnectSecurityScheme `protobuf:"bytes,4,opt,name=open_id_connect_security_scheme,json=openIdConnectSecurityScheme,proto3,oneof"`
}

type SendMessageConfiguration struct {

	// The output modes that the agent is expected to respond with.
	AcceptedOutputModes []string `protobuf:"bytes,1,rep,name=accepted_output_modes,json=acceptedOutputModes,proto3" json:"accepted_output_modes,omitempty"`
	// A configuration of a webhook that can be used to receive updates
	PushNotification *PushNotificationConfig `protobuf:"bytes,2,opt,name=push_notification,json=pushNotification,proto3" json:"push_notification,omitempty"`
	// The maximum number of messages to include in the history. if 0, the
	// history will be unlimited.
	HistoryLength int32 `protobuf:"varint,3,opt,name=history_length,json=historyLength,proto3" json:"history_length,omitempty"`
	// If true, the message will be blocking until the task is completed. If
	// false, the message will be non-blocking and the task will be returned
	// immediately. It is the caller's responsibility to check for any task
	// updates.
	Blocking bool `protobuf:"varint,4,opt,name=blocking,proto3" json:"blocking,omitempty"`
	// contains filtered or unexported fields
}

type SendMessageRequest struct {

	// The message to send to the agent.
	Request *Message `protobuf:"bytes,1,opt,name=request,json=message,proto3" json:"request,omitempty"`
	// Configuration for the send request.
	Configuration *SendMessageConfiguration `protobuf:"bytes,2,opt,name=configuration,proto3" json:"configuration,omitempty"`
	// Optional metadata for the request.
	Metadata *structpb.Struct `protobuf:"bytes,3,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type SendMessageResponse struct {

	// Types that are valid to be assigned to Payload:
	//
	//	*SendMessageResponse_Task
	//	*SendMessageResponse_Msg
	Payload isSendMessageResponse_Payload `protobuf_oneof:"payload"`
	// contains filtered or unexported fields
}

type SendMessageResponse_Msg struct {
	Msg *Message `protobuf:"bytes,2,opt,name=msg,json=message,proto3,oneof"`
}

type SendMessageResponse_Task struct {
	Task *Task `protobuf:"bytes,1,opt,name=task,proto3,oneof"`
}

type StreamResponse struct {

	// Types that are valid to be assigned to Payload:
	//
	//	*StreamResponse_Task
	//	*StreamResponse_Msg
	//	*StreamResponse_StatusUpdate
	//	*StreamResponse_ArtifactUpdate
	Payload isStreamResponse_Payload `protobuf_oneof:"payload"`
	// contains filtered or unexported fields
}

type StreamResponse_ArtifactUpdate struct {
	ArtifactUpdate *TaskArtifactUpdateEvent `protobuf:"bytes,4,opt,name=artifact_update,json=artifactUpdate,proto3,oneof"`
}

type StreamResponse_Msg struct {
	Msg *Message `protobuf:"bytes,2,opt,name=msg,json=message,proto3,oneof"`
}

type StreamResponse_StatusUpdate struct {
	StatusUpdate *TaskStatusUpdateEvent `protobuf:"bytes,3,opt,name=status_update,json=statusUpdate,proto3,oneof"`
}

type StreamResponse_Task struct {
	Task *Task `protobuf:"bytes,1,opt,name=task,proto3,oneof"`
}

type StringList struct {
	List []string `protobuf:"bytes,1,rep,name=list,proto3" json:"list,omitempty"`
	// contains filtered or unexported fields
}

type Task struct {

	// Unique identifier (e.g. UUID) for the task, generated by the server for a
	// new task.
	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
	// Unique identifier (e.g. UUID) for the contextual collection of interactions
	// (tasks and messages). Created by the A2A server.
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// The current status of a Task, including state and a message.
	Status *TaskStatus `protobuf:"bytes,3,opt,name=status,proto3" json:"status,omitempty"`
	// A set of output artifacts for a Task.
	Artifacts []*Artifact `protobuf:"bytes,4,rep,name=artifacts,proto3" json:"artifacts,omitempty"`
	// protolint:disable REPEATED_FIELD_NAMES_PLURALIZED
	// The history of interactions from a task.
	History []*Message `protobuf:"bytes,5,rep,name=history,proto3" json:"history,omitempty"`
	// protolint:enable REPEATED_FIELD_NAMES_PLURALIZED
	// A key/value object to store custom metadata about a task.
	Metadata *structpb.Struct `protobuf:"bytes,6,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type TaskArtifactUpdateEvent struct {

	// The id of the task for this artifact
	TaskId string `protobuf:"bytes,1,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The id of the context that this task belongs too
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// The artifact itself
	Artifact *Artifact `protobuf:"bytes,3,opt,name=artifact,proto3" json:"artifact,omitempty"`
	// Whether this should be appended to a prior one produced
	Append bool `protobuf:"varint,4,opt,name=append,proto3" json:"append,omitempty"`
	// Whether this represents the last part of an artifact
	LastChunk bool `protobuf:"varint,5,opt,name=last_chunk,json=lastChunk,proto3" json:"last_chunk,omitempty"`
	// Optional metadata associated with the artifact update.
	Metadata *structpb.Struct `protobuf:"bytes,6,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type TaskPushNotificationConfig struct {

	// The resource name of the config.
	// Format: tasks/{task_id}/pushNotificationConfigs/{config_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// The push notification configuration details.
	PushNotificationConfig *PushNotificationConfig `` /* 129-byte string literal not displayed */
	// contains filtered or unexported fields
}

type TaskState int32

type TaskStatus struct {

	// The current state of this task
	State TaskState `protobuf:"varint,1,opt,name=state,proto3,enum=a2a.v1.TaskState" json:"state,omitempty"`
	// A message associated with the status.
	Update *Message `protobuf:"bytes,2,opt,name=update,json=message,proto3" json:"update,omitempty"`
	// Timestamp when the status was recorded.
	// Example: "2023-10-27T10:00:00Z"
	Timestamp *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
	// contains filtered or unexported fields
}

type TaskStatusUpdateEvent struct {

	// The id of the task that is changed
	TaskId string `protobuf:"bytes,1,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The id of the context that the task belongs to
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// The new status of the task.
	Status *TaskStatus `protobuf:"bytes,3,opt,name=status,proto3" json:"status,omitempty"`
	// Whether this is the last status update expected for this task.
	Final bool `protobuf:"varint,4,opt,name=final,proto3" json:"final,omitempty"`
	// Optional metadata to associate with the task update.
	Metadata *structpb.Struct `protobuf:"bytes,5,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type TaskSubscriptionRequest struct {

	// The resource name of the task to subscribe to.
	// Format: tasks/{task_id}
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// contains filtered or unexported fields
}

type UnimplementedA2AServiceServer struct{}

type UnsafeA2AServiceServer interface {
	// contains filtered or unexported methods
}