@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(operator_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, operator_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tag_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, tag_);
    }
    if (registry_ != com.google.cloud.visionai.v1.Registry.REGISTRY_UNSPECIFIED.getNumber()) {
      size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, registry_);
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
Optional. Registry of the operator.
</pre>

<code>
.google.cloud.visionai.v1.Registry registry = 3 [(.google.api.field_behavior) = OPTIONAL];
</code>

@return The registry.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OperatorQuery.java