public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
    return InstantiatingGrpcChannelProvider.newBuilder()
        .setMaxInboundMessageSize(Integer.MAX_VALUE);
  }
Returns a builder for the default ChannelProvider for this service.
java-tpu/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStubSettings.java