public Builder setRequestedCancellation(boolean value) {

      requestedCancellation_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
<pre>
Output only. Identifies whether the user has requested cancellation
of the operation. Operations that have successfully been cancelled
have [Operation.error][] value with a
[google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to
`Code.CANCELLED`.
</pre>

<code>bool requested_cancellation = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@param value The requestedCancellation to set.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OperationMetadata.java