public OperationCallSettings<DeleteCollectionRequest, Empty, DeleteCollectionMetadata>
      deleteCollectionOperationSettings() {
    return deleteCollectionOperationSettings;
  }
Returns the object with the settings used for calls to deleteCollection.
java-visionai/google-cloud-visionai/src/main/java/com/google/cloud/visionai/v1/stub/WarehouseStubSettings.java