a2apb

type A2AServiceClient interface {
	// Sends a message to an agent.
	SendMessage(ctx context.Context, in *SendMessageRequest, opts ...grpc.CallOption) (*SendMessageResponse, error)
	// Sends a streaming message to an agent, allowing for real-time interaction and status updates.
	// Streaming version of `SendMessage`
	SendStreamingMessage(ctx context.Context, in *SendMessageRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[StreamResponse], error)
	// Gets the latest state of a task.
	GetTask(ctx context.Context, in *GetTaskRequest, opts ...grpc.CallOption) (*Task, error)
	// Lists tasks that match the specified filter.
	ListTasks(ctx context.Context, in *ListTasksRequest, opts ...grpc.CallOption) (*ListTasksResponse, error)
	// Cancels a task in progress.
	CancelTask(ctx context.Context, in *CancelTaskRequest, opts ...grpc.CallOption) (*Task, error)
	// Subscribes to task updates for tasks not in a terminal state.
	// Returns `UnsupportedOperationError` if the task is already in a terminal state (completed, failed, canceled, rejected).
	SubscribeToTask(ctx context.Context, in *SubscribeToTaskRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[StreamResponse], error)
	// (-- api-linter: client-libraries::4232::required-fields=disabled
	//
	//	api-linter: core::0133::method-signature=disabled
	//	api-linter: core::0133::request-message-name=disabled
	//	aip.dev/not-precedent: method_signature preserved for backwards compatibility --)
	//
	// Creates a push notification config for a task.
	CreateTaskPushNotificationConfig(ctx context.Context, in *TaskPushNotificationConfig, opts ...grpc.CallOption) (*TaskPushNotificationConfig, error)
	// Gets 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.
	ListTaskPushNotificationConfigs(ctx context.Context, in *ListTaskPushNotificationConfigsRequest, opts ...grpc.CallOption) (*ListTaskPushNotificationConfigsResponse, error)
	// Gets the extended agent card for the authenticated agent.
	GetExtendedAgentCard(ctx context.Context, in *GetExtendedAgentCardRequest, opts ...grpc.CallOption) (*AgentCard, error)
	// Deletes a push notification config for a task.
	DeleteTaskPushNotificationConfig(ctx context.Context, in *DeleteTaskPushNotificationConfigRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
}

type A2AServiceServer interface {
	// Sends a message to an agent.
	SendMessage(context.Context, *SendMessageRequest) (*SendMessageResponse, error)
	// Sends a streaming message to an agent, allowing for real-time interaction and status updates.
	// Streaming version of `SendMessage`
	SendStreamingMessage(*SendMessageRequest, grpc.ServerStreamingServer[StreamResponse]) error
	// Gets the latest state of a task.
	GetTask(context.Context, *GetTaskRequest) (*Task, error)
	// Lists tasks that match the specified filter.
	ListTasks(context.Context, *ListTasksRequest) (*ListTasksResponse, error)
	// Cancels a task in progress.
	CancelTask(context.Context, *CancelTaskRequest) (*Task, error)
	// Subscribes to task updates for tasks not in a terminal state.
	// Returns `UnsupportedOperationError` if the task is already in a terminal state (completed, failed, canceled, rejected).
	SubscribeToTask(*SubscribeToTaskRequest, grpc.ServerStreamingServer[StreamResponse]) error
	// (-- api-linter: client-libraries::4232::required-fields=disabled
	//
	//	api-linter: core::0133::method-signature=disabled
	//	api-linter: core::0133::request-message-name=disabled
	//	aip.dev/not-precedent: method_signature preserved for backwards compatibility --)
	//
	// Creates a push notification config for a task.
	CreateTaskPushNotificationConfig(context.Context, *TaskPushNotificationConfig) (*TaskPushNotificationConfig, error)
	// Gets a push notification config for a task.
	GetTaskPushNotificationConfig(context.Context, *GetTaskPushNotificationConfigRequest) (*TaskPushNotificationConfig, error)
	// Get a list of push notifications configured for a task.
	ListTaskPushNotificationConfigs(context.Context, *ListTaskPushNotificationConfigsRequest) (*ListTaskPushNotificationConfigsResponse, error)
	// Gets the extended agent card for the authenticated agent.
	GetExtendedAgentCard(context.Context, *GetExtendedAgentCardRequest) (*AgentCard, error)
	// Deletes 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_SubscribeToTaskClient = grpc.ServerStreamingClient[StreamResponse]

type A2AService_SubscribeToTaskServer = grpc.ServerStreamingServer[StreamResponse]

type APIKeySecurityScheme struct {

	// An optional description for the security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// The location of the API key. Valid values are "query", "header", or "cookie".
	Location string `protobuf:"bytes,2,opt,name=location,proto3" json:"location,omitempty"`
	// The 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 {

	// Indicates if the agent supports streaming responses.
	Streaming *bool `protobuf:"varint,1,opt,name=streaming,proto3,oneof" json:"streaming,omitempty"`
	// Indicates if the agent supports sending push notifications for asynchronous task updates.
	PushNotifications *bool `protobuf:"varint,2,opt,name=push_notifications,json=pushNotifications,proto3,oneof" json:"push_notifications,omitempty"`
	// A list of protocol extensions supported by the agent.
	Extensions []*AgentExtension `protobuf:"bytes,3,rep,name=extensions,proto3" json:"extensions,omitempty"`
	// Indicates if the agent supports providing an extended agent card when authenticated.
	ExtendedAgentCard *bool `protobuf:"varint,4,opt,name=extended_agent_card,json=extendedAgentCard,proto3,oneof" json:"extended_agent_card,omitempty"`
	// contains filtered or unexported fields
}

type AgentCard struct {

	// A human readable name for the agent.
	// Example: "Recipe Agent"
	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	// A human-readable description of the agent, assisting users and other agents
	// in understanding its purpose.
	// Example: "Agent that helps users with recipes and cooking."
	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
	// Ordered list of supported interfaces. The first entry is preferred.
	SupportedInterfaces []*AgentInterface `protobuf:"bytes,3,rep,name=supported_interfaces,json=supportedInterfaces,proto3" json:"supported_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 providing additional documentation about the agent.
	DocumentationUrl *string `protobuf:"bytes,6,opt,name=documentation_url,json=documentationUrl,proto3,oneof" 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 */
	// Security requirements for contacting the agent.
	SecurityRequirements []*SecurityRequirement `protobuf:"bytes,9,rep,name=security_requirements,json=securityRequirements,proto3" json:"security_requirements,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 media types.
	DefaultInputModes []string `protobuf:"bytes,10,rep,name=default_input_modes,json=defaultInputModes,proto3" json:"default_input_modes,omitempty"`
	// The media 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 the abilities of an agent.
	// It is largely a descriptive concept but represents a more focused set of behaviors that the
	// agent is likely to succeed at.
	Skills []*AgentSkill `protobuf:"bytes,12,rep,name=skills,proto3" json:"skills,omitempty"`
	// JSON Web Signatures computed for this `AgentCard`.
	Signatures []*AgentCardSignature `protobuf:"bytes,13,rep,name=signatures,proto3" json:"signatures,omitempty"`
	// Optional. A URL to an icon for the agent.
	IconUrl *string `protobuf:"bytes,14,opt,name=icon_url,json=iconUrl,proto3,oneof" json:"icon_url,omitempty"`
	// contains filtered or unexported fields
}

type AgentCardSignature struct {

	// (-- api-linter: core::0140::reserved-words=disabled
	//
	//	aip.dev/not-precedent: Backwards compatibility --)
	//
	// Required. The protected JWS header for the signature. This is always a
	// base64url-encoded JSON object.
	Protected string `protobuf:"bytes,1,opt,name=protected,proto3" json:"protected,omitempty"`
	// Required. The computed signature, base64url-encoded.
	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 unique URI identifying the extension.
	Uri string `protobuf:"bytes,1,opt,name=uri,proto3" json:"uri,omitempty"`
	// A human-readable description of how this agent uses the extension.
	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
	// If true, the client must understand and comply with the extension's requirements.
	Required bool `protobuf:"varint,3,opt,name=required,proto3" json:"required,omitempty"`
	// Optional. Extension-specific configuration parameters.
	Params *structpb.Struct `protobuf:"bytes,4,opt,name=params,proto3" json:"params,omitempty"`
	// contains filtered or unexported fields
}

type AgentInterface struct {

	// The URL where this interface is available. Must be a valid absolute HTTPS URL in production.
	// Example: "https://api.example.com/a2a/v1", "https://grpc.example.com/a2a"
	Url string `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"`
	// The protocol binding supported at this URL. This is an open form string, to be
	// easily extended for other protocol bindings. The core ones officially
	// supported are `JSONRPC`, `GRPC` and `HTTP+JSON`.
	ProtocolBinding string `protobuf:"bytes,2,opt,name=protocol_binding,json=protocolBinding,proto3" json:"protocol_binding,omitempty"`
	// Optional. An opaque string used for routing requests to a specific agent
	// or tenant when multiple agents are served behind a single A2A endpoint.
	// When set, clients MUST include this value in the `tenant` field of all
	// request messages sent to this interface. The server is responsible for
	// interpreting the value and routing requests accordingly; the protocol
	// does not define its format or semantics.
	Tenant string `protobuf:"bytes,3,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The version of the A2A protocol this interface exposes.
	// Use the latest supported minor version per major version.
	// Examples: "0.3", "1.0"
	ProtocolVersion string `protobuf:"bytes,4,opt,name=protocol_version,json=protocolVersion,proto3" json:"protocol_version,omitempty"`
	// contains filtered or unexported fields
}

type AgentProvider struct {

	// A URL for the agent provider's website or relevant documentation.
	// Example: "https://ai.google.dev"
	Url string `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"`
	// The name of the agent provider's organization.
	// Example: "Google"
	Organization string `protobuf:"bytes,2,opt,name=organization,proto3" json:"organization,omitempty"`
	// contains filtered or unexported fields
}

type AgentSkill struct {

	// A unique identifier for the agent's skill.
	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 detailed description of the skill.
	Description string `protobuf:"bytes,3,opt,name=description,proto3" json:"description,omitempty"`
	// A set of keywords describing the skill's capabilities.
	Tags []string `protobuf:"bytes,4,rep,name=tags,proto3" json:"tags,omitempty"`
	// Example prompts or scenarios that this skill can handle.
	Examples []string `protobuf:"bytes,5,rep,name=examples,proto3" json:"examples,omitempty"`
	// The set of supported input media types for this skill, overriding the agent's defaults.
	InputModes []string `protobuf:"bytes,6,rep,name=input_modes,json=inputModes,proto3" json:"input_modes,omitempty"`
	// The set of supported output media types for this skill, overriding the agent's defaults.
	OutputModes []string `protobuf:"bytes,7,rep,name=output_modes,json=outputModes,proto3" json:"output_modes,omitempty"`
	// Security schemes necessary for this skill.
	SecurityRequirements []*SecurityRequirement `protobuf:"bytes,8,rep,name=security_requirements,json=securityRequirements,proto3" json:"security_requirements,omitempty"`
	// contains filtered or unexported fields
}

type Artifact struct {

	// Unique identifier (e.g. UUID) for the artifact. It must be 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,2,opt,name=name,proto3" json:"name,omitempty"`
	// Optional. A human readable description of the artifact.
	Description string `protobuf:"bytes,3,opt,name=description,proto3" json:"description,omitempty"`
	// The content of the artifact. Must contain at least one part.
	Parts []*Part `protobuf:"bytes,4,rep,name=parts,proto3" json:"parts,omitempty"`
	// Optional. Metadata included with the artifact.
	Metadata *structpb.Struct `protobuf:"bytes,5,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// The URIs of extensions that are present or contributed to this Artifact.
	Extensions []string `protobuf:"bytes,6,rep,name=extensions,proto3" json:"extensions,omitempty"`
	// contains filtered or unexported fields
}

type AuthenticationInfo struct {

	// HTTP Authentication Scheme from the [IANA registry](https://www.iana.org/assignments/http-authschemes/).
	// Examples: `Bearer`, `Basic`, `Digest`.
	// Scheme names are case-insensitive per [RFC 9110 Section 11.1](https://www.rfc-editor.org/rfc/rfc9110#section-11.1).
	Scheme string `protobuf:"bytes,1,opt,name=scheme,proto3" json:"scheme,omitempty"`
	// Push Notification credentials. Format depends on the scheme (e.g., token for Bearer).
	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.
	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.
	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.
	RefreshUrl string `protobuf:"bytes,3,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// Indicates if PKCE (RFC 7636) is required for this flow.
	// PKCE should always be used for public clients and is recommended for all clients.
	PkceRequired bool `protobuf:"varint,5,opt,name=pkce_required,json=pkceRequired,proto3" json:"pkce_required,omitempty"`
	// contains filtered or unexported fields
}

type CancelTaskRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The resource ID of the task to cancel.
	Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
	// A flexible key-value map for passing additional context or parameters.
	Metadata *structpb.Struct `protobuf:"bytes,3,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type ClientCredentialsOAuthFlow struct {

	// The token URL to be used for this flow.
	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.
	RefreshUrl string `protobuf:"bytes,2,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type DeleteTaskPushNotificationConfigRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The parent task resource ID.
	TaskId string `protobuf:"bytes,2,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The resource ID of the configuration to delete.
	Id string `protobuf:"bytes,3,opt,name=id,proto3" json:"id,omitempty"`
	// contains filtered or unexported fields
}

type DeviceCodeOAuthFlow struct {

	// The device authorization endpoint URL.
	DeviceAuthorizationUrl string `` /* 129-byte string literal not displayed */
	// The token URL to be used for this flow.
	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.
	RefreshUrl string `protobuf:"bytes,3,opt,name=refresh_url,json=refreshUrl,proto3" json:"refresh_url,omitempty"`
	// The available scopes for the OAuth2 security scheme.
	Scopes map[string]string `` /* 139-byte string literal not displayed */
	// contains filtered or unexported fields
}

type GetExtendedAgentCardRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// contains filtered or unexported fields
}

type GetTaskPushNotificationConfigRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The parent task resource ID.
	TaskId string `protobuf:"bytes,2,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The resource ID of the configuration to retrieve.
	Id string `protobuf:"bytes,3,opt,name=id,proto3" json:"id,omitempty"`
	// contains filtered or unexported fields
}

type GetTaskRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The resource ID of the task to retrieve.
	Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
	// The maximum number of most recent messages from the task's history to retrieve. An
	// unset value means the client does not impose any limit. A value of zero is
	// a request to not include any messages. The server MUST NOT return more
	// messages than the provided value, but MAY apply a lower limit.
	HistoryLength *int32 `protobuf:"varint,3,opt,name=history_length,json=historyLength,proto3,oneof" json:"history_length,omitempty"`
	// contains filtered or unexported fields
}

type HTTPAuthSecurityScheme struct {

	// An optional description for the 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 (e.g., "Bearer").
	// This value should be registered in the IANA Authentication Scheme registry.
	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 (e.g., "JWT").
	// 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 ListTaskPushNotificationConfigsRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,4,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The parent task resource ID.
	TaskId string `protobuf:"bytes,1,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The maximum number of configurations to return.
	PageSize int32 `protobuf:"varint,2,opt,name=page_size,json=pageSize,proto3" json:"page_size,omitempty"`
	// A page token received from a previous `ListTaskPushNotificationConfigsRequest` call.
	PageToken string `protobuf:"bytes,3,opt,name=page_token,json=pageToken,proto3" json:"page_token,omitempty"`
	// contains filtered or unexported fields
}

type ListTaskPushNotificationConfigsResponse struct {

	// The list of push notification configurations.
	Configs []*TaskPushNotificationConfig `protobuf:"bytes,1,rep,name=configs,proto3" json:"configs,omitempty"`
	// A token to retrieve the next page of results, or empty if there are no more results in the list.
	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 {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// Filter tasks by context ID to get tasks from a specific conversation or session.
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// Filter tasks by their current status state.
	Status TaskState `protobuf:"varint,3,opt,name=status,proto3,enum=lf.a2a.v1.TaskState" json:"status,omitempty"`
	// The maximum number of tasks to return. The service may return fewer than this value.
	// If unspecified, at most 50 tasks will be returned.
	// The minimum value is 1.
	// The maximum value is 100.
	PageSize *int32 `protobuf:"varint,4,opt,name=page_size,json=pageSize,proto3,oneof" json:"page_size,omitempty"`
	// A page token, received from a previous `ListTasks` call.
	// `ListTasksResponse.next_page_token`.
	// Provide this to retrieve the subsequent page.
	PageToken string `protobuf:"bytes,5,opt,name=page_token,json=pageToken,proto3" json:"page_token,omitempty"`
	// The maximum number of messages to include in each task's history.
	HistoryLength *int32 `protobuf:"varint,6,opt,name=history_length,json=historyLength,proto3,oneof" json:"history_length,omitempty"`
	// Filter tasks which have a status updated after the provided timestamp in ISO 8601 format (e.g., "2023-10-27T10:00:00Z").
	// Only tasks with a status timestamp time greater than or equal to this value will be returned.
	StatusTimestampAfter *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=status_timestamp_after,json=statusTimestampAfter,proto3" json:"status_timestamp_after,omitempty"`
	// Whether to include artifacts in the returned tasks.
	// Defaults to false to reduce payload size.
	IncludeArtifacts *bool `protobuf:"varint,8,opt,name=include_artifacts,json=includeArtifacts,proto3,oneof" 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"`
	// A token to retrieve the next page of results, or empty if there are no more results in the list.
	NextPageToken string `protobuf:"bytes,2,opt,name=next_page_token,json=nextPageToken,proto3" json:"next_page_token,omitempty"`
	// The page size used for this response.
	PageSize int32 `protobuf:"varint,3,opt,name=page_size,json=pageSize,proto3" json:"page_size,omitempty"`
	// Total number of tasks available (before pagination).
	TotalSize int32 `protobuf:"varint,4,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 created by the message creator.
	MessageId string `protobuf:"bytes,1,opt,name=message_id,json=messageId,proto3" json:"message_id,omitempty"`
	// Optional. The context id of the message. 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"`
	// Optional. The task id of the message. 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"`
	// Identifies the sender of the message.
	Role Role `protobuf:"varint,4,opt,name=role,proto3,enum=lf.a2a.v1.Role" json:"role,omitempty"`
	// Parts is the container of the message content.
	Parts []*Part `protobuf:"bytes,5,rep,name=parts,proto3" json:"parts,omitempty"`
	// Optional. Any 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 {

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

type OAuth2SecurityScheme struct {

	// An optional description for the security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// An object containing configuration information for the supported OAuth 2.0 flows.
	Flows *OAuthFlows `protobuf:"bytes,2,opt,name=flows,proto3" json:"flows,omitempty"`
	// URL to the OAuth2 authorization server metadata [RFC 8414](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
	//	*OAuthFlows_DeviceCode
	Flow isOAuthFlows_Flow `protobuf_oneof:"flow"`
	// contains filtered or unexported fields
}

type OAuthFlows_AuthorizationCode struct {
	// Configuration for the OAuth Authorization Code flow.
	AuthorizationCode *AuthorizationCodeOAuthFlow `protobuf:"bytes,1,opt,name=authorization_code,json=authorizationCode,proto3,oneof"`
}

type OAuthFlows_ClientCredentials struct {
	// Configuration for the OAuth Client Credentials flow.
	ClientCredentials *ClientCredentialsOAuthFlow `protobuf:"bytes,2,opt,name=client_credentials,json=clientCredentials,proto3,oneof"`
}

type OAuthFlows_DeviceCode struct {
	// Configuration for the OAuth Device Code flow.
	DeviceCode *DeviceCodeOAuthFlow `protobuf:"bytes,5,opt,name=device_code,json=deviceCode,proto3,oneof"`
}

type OAuthFlows_Implicit struct {
	// Deprecated: Use Authorization Code + PKCE instead.
	//
	// Deprecated: Marked as deprecated in a2a/v1/a2a.proto.
	Implicit *ImplicitOAuthFlow `protobuf:"bytes,3,opt,name=implicit,proto3,oneof"`
}

type OAuthFlows_Password struct {
	// Deprecated: Use Authorization Code + PKCE or Device Code.
	//
	// Deprecated: Marked as deprecated in a2a/v1/a2a.proto.
	Password *PasswordOAuthFlow `protobuf:"bytes,4,opt,name=password,proto3,oneof"`
}

type OpenIdConnectSecurityScheme struct {

	// An optional description for the security scheme.
	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
	// The [OpenID Connect Discovery URL](https://openid.net/specs/openid-connect-discovery-1_0.html) for the OIDC provider's 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 Content:
	//
	//	*Part_Text
	//	*Part_Raw
	//	*Part_Url
	//	*Part_Data
	Content isPart_Content `protobuf_oneof:"content"`
	// Optional. metadata associated with this part.
	Metadata *structpb.Struct `protobuf:"bytes,5,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// An optional `filename` for the file (e.g., "document.pdf").
	Filename string `protobuf:"bytes,6,opt,name=filename,proto3" json:"filename,omitempty"`
	// The `media_type` (MIME type) of the part content (e.g., "text/plain", "application/json", "image/png").
	// This field is available for all part types.
	MediaType string `protobuf:"bytes,7,opt,name=media_type,json=mediaType,proto3" json:"media_type,omitempty"`
	// contains filtered or unexported fields
}

type Part_Data struct {
	// Arbitrary structured `data` as a JSON value (object, array, string, number, boolean, or null).
	Data *structpb.Value `protobuf:"bytes,4,opt,name=data,proto3,oneof"`
}

type Part_Raw struct {
	// The `raw` byte content of a file. In JSON serialization, this is encoded as a base64 string.
	Raw []byte `protobuf:"bytes,2,opt,name=raw,proto3,oneof"`
}

type Part_Text struct {
	// The string content of the `text` part.
	Text string `protobuf:"bytes,1,opt,name=text,proto3,oneof"`
}

type Part_Url struct {
	// A `url` pointing to the file's content.
	Url string `protobuf:"bytes,3,opt,name=url,proto3,oneof"`
}

type Role int32

type SecurityRequirement struct {

	// A map of security schemes to the required scopes.
	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 {
	// API key-based authentication.
	ApiKeySecurityScheme *APIKeySecurityScheme `protobuf:"bytes,1,opt,name=api_key_security_scheme,json=apiKeySecurityScheme,proto3,oneof"`
}

type SecurityScheme_HttpAuthSecurityScheme struct {
	// HTTP authentication (Basic, Bearer, etc.).
	HttpAuthSecurityScheme *HTTPAuthSecurityScheme `protobuf:"bytes,2,opt,name=http_auth_security_scheme,json=httpAuthSecurityScheme,proto3,oneof"`
}

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

type SecurityScheme_Oauth2SecurityScheme struct {
	// OAuth 2.0 authentication.
	Oauth2SecurityScheme *OAuth2SecurityScheme `protobuf:"bytes,3,opt,name=oauth2_security_scheme,json=oauth2SecurityScheme,proto3,oneof"`
}

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

type SendMessageConfiguration struct {

	// A list of media types the client is prepared to accept for response parts.
	// Agents SHOULD use this to tailor their output.
	AcceptedOutputModes []string `protobuf:"bytes,1,rep,name=accepted_output_modes,json=acceptedOutputModes,proto3" json:"accepted_output_modes,omitempty"`
	// Configuration for the agent to send push notifications for task updates.
	// Task id should be empty when sending this configuration in a `SendMessage` request.
	TaskPushNotificationConfig *TaskPushNotificationConfig `` /* 143-byte string literal not displayed */
	// The maximum number of most recent messages from the task's history to retrieve in
	// the response. An unset value means the client does not impose any limit. A
	// value of zero is a request to not include any messages. The server MUST NOT
	// return more messages than the provided value, but MAY apply a lower limit.
	HistoryLength *int32 `protobuf:"varint,3,opt,name=history_length,json=historyLength,proto3,oneof" json:"history_length,omitempty"`
	// If `true`, the operation returns immediately after creating the task,
	// even if processing is still in progress.
	// If `false` (default), the operation MUST wait until the task reaches a
	// terminal (`COMPLETED`, `FAILED`, `CANCELED`, `REJECTED`) or interrupted
	// (`INPUT_REQUIRED`, `AUTH_REQUIRED`) state before returning.
	ReturnImmediately bool `protobuf:"varint,4,opt,name=return_immediately,json=returnImmediately,proto3" json:"return_immediately,omitempty"`
	// contains filtered or unexported fields
}

type SendMessageRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The message to send to the agent.
	Message *Message `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
	// Configuration for the send request.
	Configuration *SendMessageConfiguration `protobuf:"bytes,3,opt,name=configuration,proto3" json:"configuration,omitempty"`
	// A flexible key-value map for passing additional context or parameters.
	Metadata *structpb.Struct `protobuf:"bytes,4,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type SendMessageResponse struct {

	// The payload of the response.
	//
	// Types that are valid to be assigned to Payload:
	//
	//	*SendMessageResponse_Task
	//	*SendMessageResponse_Message
	Payload isSendMessageResponse_Payload `protobuf_oneof:"payload"`
	// contains filtered or unexported fields
}

type SendMessageResponse_Message struct {
	// A message from the agent.
	Message *Message `protobuf:"bytes,2,opt,name=message,proto3,oneof"`
}

type SendMessageResponse_Task struct {
	// The task created or updated by the message.
	Task *Task `protobuf:"bytes,1,opt,name=task,proto3,oneof"`
}

type StreamResponse struct {

	// The payload of the stream response.
	//
	// Types that are valid to be assigned to Payload:
	//
	//	*StreamResponse_Task
	//	*StreamResponse_Message
	//	*StreamResponse_StatusUpdate
	//	*StreamResponse_ArtifactUpdate
	Payload isStreamResponse_Payload `protobuf_oneof:"payload"`
	// contains filtered or unexported fields
}

type StreamResponse_ArtifactUpdate struct {
	// An event indicating a task artifact update.
	ArtifactUpdate *TaskArtifactUpdateEvent `protobuf:"bytes,4,opt,name=artifact_update,json=artifactUpdate,proto3,oneof"`
}

type StreamResponse_Message struct {
	// A Message object containing a message from the agent.
	Message *Message `protobuf:"bytes,2,opt,name=message,proto3,oneof"`
}

type StreamResponse_StatusUpdate struct {
	// An event indicating a task status update.
	StatusUpdate *TaskStatusUpdateEvent `protobuf:"bytes,3,opt,name=status_update,json=statusUpdate,proto3,oneof"`
}

type StreamResponse_Task struct {
	// A Task object containing the current state of the task.
	Task *Task `protobuf:"bytes,1,opt,name=task,proto3,oneof"`
}

type StringList struct {

	// The individual string values.
	List []string `protobuf:"bytes,1,rep,name=list,proto3" json:"list,omitempty"`
	// contains filtered or unexported fields
}

type SubscribeToTaskRequest struct {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The resource ID of the task to subscribe to.
	Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,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).
	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 to.
	ContextId string `protobuf:"bytes,2,opt,name=context_id,json=contextId,proto3" json:"context_id,omitempty"`
	// The artifact that was generated or updated.
	Artifact *Artifact `protobuf:"bytes,3,opt,name=artifact,proto3" json:"artifact,omitempty"`
	// If true, the content of this artifact should be appended to a previously
	// sent artifact with the same ID.
	Append bool `protobuf:"varint,4,opt,name=append,proto3" json:"append,omitempty"`
	// If true, this is the final chunk of the 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 {

	// Optional. Opaque routing identifier. Must match the `tenant` value from
	// the selected `AgentInterface` in the Agent Card when that field is set.
	Tenant string `protobuf:"bytes,1,opt,name=tenant,proto3" json:"tenant,omitempty"`
	// The push notification configuration details.
	// A unique identifier (e.g. UUID) for this push notification configuration.
	Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
	// The ID of the task this configuration is associated with.
	TaskId string `protobuf:"bytes,3,opt,name=task_id,json=taskId,proto3" json:"task_id,omitempty"`
	// The URL where the notification should be sent.
	Url string `protobuf:"bytes,4,opt,name=url,proto3" json:"url,omitempty"`
	// A token unique for this task or session.
	Token string `protobuf:"bytes,5,opt,name=token,proto3" json:"token,omitempty"`
	// Authentication information required to send the notification.
	Authentication *AuthenticationInfo `protobuf:"bytes,6,opt,name=authentication,proto3" json:"authentication,omitempty"`
	// 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=lf.a2a.v1.TaskState" json:"state,omitempty"`
	// A message associated with the status.
	Message *Message `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
	// ISO 8601 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 has 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"`
	// Optional. Metadata associated with the task update.
	Metadata *structpb.Struct `protobuf:"bytes,4,opt,name=metadata,proto3" json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type UnimplementedA2AServiceServer struct{}

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