public OperationCallSettings.Builder<MaterializeChannelRequest, Channel, OperationMetadata>
        materializeChannelOperationSettings() {
      return materializeChannelOperationSettings;
    }
Returns the builder for the settings used for calls to materializeChannel.
java-visionai/google-cloud-visionai/src/main/java/com/google/cloud/visionai/v1/stub/StreamsServiceStubSettings.java