code: public final ListTransferConfigsPagedResponse listTransferConfigs(ParentName parent) {
      ListTransferConfigsRequest request =
          ListTransferConfigsRequest.newBuilder()
              .setParent(parent == null ? null : parent.toString())
              .build();
      return listTransferConfigs(request);
    }
docs: Returns information about all data transfers in the project.
  
  <p>Sample code:
  
  <pre><code>
  try (DataTransferServiceClient dataTransferServiceClient = DataTransferServiceClient.create()) {
  ParentName parent = ProjectName.of("[PROJECT]");
  for (TransferConfig element : dataTransferServiceClient.listTransferConfigs(parent).iterateAll()) {
  // doThingsWith(element);
  }
  }
  </code></pre>
  
  @param parent The BigQuery project id for which data sources should be returned:
  `projects/{project_id}`.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails