> ## Documentation Index > Fetch the complete documentation index at: https://docs.prefect.io/llms.txt > Use this file to discover all available pages before exploring further. # worker_channel # `prefect.client.schemas.worker_channel` Shared v1 worker-channel protocol contract. ## Functions ### `validate_worker_channel_frame` ```python theme={null} validate_worker_channel_frame(frame: Any) -> WorkerChannelApplicationFrame ``` ### `select_worker_channel_version` ```python theme={null} select_worker_channel_version(supported_versions: Iterable[str]) -> WorkerChannelVersion ``` ## Classes ### `WorkerChannelCloseReason` ### `WorkerChannelClosePolicy` **Methods:** #### `model_validate_list` ```python theme={null} model_validate_list(cls, obj: Any) -> list[Self] ``` #### `reset_fields` ```python theme={null} reset_fields(self: Self) -> Self ``` Reset the fields of the model that are in the `_reset_fields` set. **Returns:** * A new instance of the model with the reset fields. ### `WorkerChannelProtocolError` ### `WorkerChannelContract` **Methods:** #### `model_validate_list` ```python theme={null} model_validate_list(cls, obj: Any) -> list[Self] ``` #### `reset_fields` ```python theme={null} reset_fields(self: Self) -> Self ``` Reset the fields of the model that are in the `_reset_fields` set. **Returns:** * A new instance of the model with the reset fields. ### `WorkerChannelAuthRequest` ### `WorkerChannelAuthSuccess` ### `WorkerChannelFrame` ### `WorkerHelloPayload` **Methods:** #### `default_cleanup_concurrency` ```python theme={null} default_cleanup_concurrency(cls, data: Any) -> Any ``` #### `required_capabilities_are_requested` ```python theme={null} required_capabilities_are_requested(self) -> WorkerHelloPayload ``` ### `WorkerHelloFrame` ### `ResolvedWorkQueue` ### `WorkPoolSnapshot` **Methods:** #### `helpful_error_for_missing_default_queue_id` ```python theme={null} helpful_error_for_missing_default_queue_id(cls, v: Optional[UUID]) -> UUID ``` #### `is_managed_pool` ```python theme={null} is_managed_pool(self) -> bool ``` #### `is_push_pool` ```python theme={null} is_push_pool(self) -> bool ``` ### `WorkPoolSnapshotPayload` ### `WorkerReadyPayload` **Methods:** #### `validate_capability_decision` ```python theme={null} validate_capability_decision(self) -> WorkerReadyPayload ``` ### `WorkerReadyFrame` ### `WorkerHeartbeatPayload` ### `WorkerHeartbeatFrame` ### `WorkPoolSnapshotFrame` ### `CancellingTimeoutTeardownTarget` **Methods:** #### `model_validate_list` ```python theme={null} model_validate_list(cls, obj: Any) -> list[Self] ``` #### `reset_fields` ```python theme={null} reset_fields(self: Self) -> Self ``` Reset the fields of the model that are in the `_reset_fields` set. **Returns:** * A new instance of the model with the reset fields. ### `PendingClaimTeardownTarget` **Methods:** #### `model_validate_list` ```python theme={null} model_validate_list(cls, obj: Any) -> list[Self] ``` #### `reset_fields` ```python theme={null} reset_fields(self: Self) -> Self ``` Reset the fields of the model that are in the `_reset_fields` set. **Returns:** * A new instance of the model with the reset fields. ### `CancellingTimeoutCleanupMessagePayload` ### `PendingClaimCleanupMessagePayload` ### `CleanupMessageFrame` ### `CleanupOperationPayload` ### `CleanupReleasePayload` ### `CleanupAckFrame` ### `CleanupReleaseFrame` ### `CleanupRenewFrame` ### `CleanupOperationResultPayload` **Methods:** #### `validate_result_contract` ```python theme={null} validate_result_contract(self) -> CleanupOperationResultPayload ``` ### `CleanupOperationResultFrame`