@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    if (hasReadMask()) {
      hash = (37 * hash) + READ_MASK_FIELD_NUMBER;
      hash = (53 * hash) + getReadMask().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Optional. Read mask is used for a more granular control over what the API
returns. If the mask is not present all fields will be returned except
[Queue.stats]. [Queue.stats] will be returned only if it was  explicitly
specified in the mask.
</pre>

<code>.google.protobuf.FieldMask read_mask = 2 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/GetQueueRequest.java