public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
    return StorageTransferServiceStubSettings.defaultGrpcTransportProviderBuilder();
  }
Returns a builder for the default gRPC ChannelProvider for this service.
java-storage-transfer/google-cloud-storage-transfer/src/main/java/com/google/storagetransfer/v1/proto/StorageTransferServiceSettings.java