- `wait.ContextForChannel()` now implements the context.Context interface and
  does not return a cancellation function. ([#115140](https://github.com/kubernetes/kubernetes/pull/115140), [@smarterclayton](https://github.com/smarterclayton))

## Dependencies

### Added

- `(*"k8s.io/client-go/rest".Request).{Do,DoRaw,Stream,Watch}` now require callers to pass a `context.Context` as an argument. The context is used for timeout and cancellation signaling and to pass supplementary information to round trippers in the wrapped transport chain. If you don't need any of this functionality, it is sufficient to pass a context created with `context.Background()` to these functions. The `(*"k...

    *   Added experimental support for parallel batching to `batch()` and
        `padded_batch()`. This functionality can be enabled through
        `tf.data.Options()`.
    *   Support cancellation of long-running `reduce`.
    *   Now we use `dataset` node name as prefix instead of the op name, to
        identify the component correctly in metrics, for pipelines with repeated
        components.

Como este pequeño ejemplo no necesita ninguna sentencia `await`, añadimos un `await anyio.sleep(0)` para darle al loop de eventos la oportunidad de manejar la cancelación.

Esto sería aún más importante con streams grandes o infinitos.

///

/// tip | Consejo

	defer func() {
		m.parent.deleteMux(false, m.MuxID)
		// addErrorNonBlockingClose will close the response channel.
		xioutil.SafeClose(responseCh)
	}()

	// Cancelation and errors are handled by handleTwowayRequests below.
	for resp := range internalResp {
		m.send(message{Op: OpUnblockSrvMux, MuxID: m.MuxID})
		responseCh <- resp
	}
}

member of the public at large and to the detriment of Affirmer's heirs and
successors, fully intending that such Waiver shall not be subject to
revocation, rescission, cancellation, termination, or any other legal or
equitable action to disrupt the quiet enjoyment of the Work by the public
as contemplated by Affirmer's express Statement of Purpose.

   * not for synchronization control.
   */
  public int getQueueLength() {
    return lock.getQueueLength();
  }

  /**
   * Returns whether any threads are waiting to enter this monitor. Note that because cancellations
   * may occur at any time, a {@code true} return does not guarantee that any other thread will ever
   * enter this monitor. This method is designed primarily for use in monitoring of the system
   * state.
   */