code: public DeleteMetadataResponse deleteMetadata(String location) throws ApiException {
          ApiResponse<DeleteMetadataResponse> resp = deleteMetadataWithHttpInfo(location);
          return resp.getData();
      }
docs: Delete upload metadata.
  Delete metadata.
  @param location The region where send metadata. (optional)
  @return DeleteMetadataResponse
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body