> ## 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.server.utilities.worker_channel`
## Functions
### `work_pool_update_triggers_snapshot`
```python theme={null}
work_pool_update_triggers_snapshot(update_values: Mapping[str, Any]) -> bool
```
### `close_worker_channel`
```python theme={null}
close_worker_channel(websocket: WebSocket, close_reason: WorkerChannelCloseReason) -> None
```
### `build_worker_channel_work_pool_snapshot`
```python theme={null}
build_worker_channel_work_pool_snapshot(session: AsyncSession, work_pool: ORMWorkPool) -> WorkPoolSnapshot
```
### `publish_snapshot_invalidation`
```python theme={null}
publish_snapshot_invalidation(invalidation: WorkerChannelSnapshotInvalidation) -> None
```
### `parse_snapshot_invalidation`
```python theme={null}
parse_snapshot_invalidation(message: messaging.Message) -> WorkerChannelSnapshotInvalidation
```
## Classes
### `WorkerChannelSnapshotInvalidation`
**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.
#### `targets`
```python theme={null}
targets(self) -> bool
```
### `WorkerChannelConnection`
**Methods:**
#### `cleanup_enabled`
```python theme={null}
cleanup_enabled(self) -> bool
```
#### `close`
```python theme={null}
close(self, close_reason: WorkerChannelCloseReason) -> None
```
#### `dispatch_one_cleanup_message`
```python theme={null}
dispatch_one_cleanup_message(self) -> bool
```
#### `has_cleanup_capacity`
```python theme={null}
has_cleanup_capacity(self) -> bool
```
#### `queue_snapshot`
```python theme={null}
queue_snapshot(self, invalidation: WorkerChannelSnapshotInvalidation) -> None
```
#### `run`
```python theme={null}
run(self, ready: WorkerReadyFrame, consumer_kwargs: Mapping[str, Any]) -> None
```