}

	// Invalid request conditions:
	//
	//   Cannot have both forceStart and forceStop in the same
	//   request; If clientToken is provided, request can only be
	//   to continue receiving logs, so it cannot be start or
	//   stop;
	if (hip.forceStart && hip.forceStop) ||
		(hip.clientToken != "" && (hip.forceStart || hip.forceStop)) {
		err = ErrInvalidRequest
		return
	}

* Make NodeController recognize deletion tombstones ([#34786](https://github.com/kubernetes/kubernetes/pull/34786), [@davidopp](https://github.com/davidopp))
* Fix panic in NodeController caused by receiving DeletedFinalStateUnknown object from the cache. ([#34694](https://github.com/kubernetes/kubernetes/pull/34694), [@gmarek](https://github.com/gmarek))

* Delete all firewall rules (and optionally network) on GCE/GKE cluster teardown ([#34577](https://github.com/kubernetes/kubernetes/pull/34577), [@ixdy](https://github.com/ixdy))
* Fix panic in NodeController caused by receiving DeletedFinalStateUnknown object from the cache. ([#34694](https://github.com/kubernetes/kubernetes/pull/34694), [@gmarek](https://github.com/gmarek))

<p>
A channel provides a mechanism for
<a href="#Go_statements">concurrently executing functions</a>
to communicate by
<a href="#Send_statements">sending</a> and
<a href="#Receive_operator">receiving</a>
values of a specified element type.
The value of an uninitialized channel is <code>nil</code>.
</p>

<pre class="ebnf">
ChannelType = ( "chan" | "chan" "&lt;-" | "&lt;-" "chan" ) ElementType .