@java.lang.Override
      public Builder clear() {
        super.clear();
        bitField0_ = 0;
        if (validUntilDurationBuilder_ != null) {
          validUntilDurationBuilder_.clear();
        }
        if (validUntilTimeBuilder_ != null) {
          validUntilTimeBuilder_.clear();
        }
        if (validAfterDurationBuilder_ != null) {
          validAfterDurationBuilder_.clear();
        }
        if (validAfterTimeBuilder_ != null) {
          validAfterTimeBuilder_.clear();
        }
        if (validIntervalBuilder_ != null) {
          validIntervalBuilder_.clear();
        }
        startTimingConstraintsCase_ = 0;
        startTimingConstraints_ = null;
        return this;
      }
<pre>
Defines the policy of the QueuedRequest.
</pre>

Protobuf type {@code google.cloud.tpu.v2alpha1.QueuedResource.QueueingPolicy}
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java