@UnstableApi
    public GrpcClientBuilder useMethodMarshaller(boolean useMethodMarshaller) {
        final ClientOptions options = buildOptions();
        if (options.get(GrpcClientOptions.UNSAFE_WRAP_RESPONSE_BUFFERS)) {
            throw new IllegalStateException(
                    "'unsafeWrapRequestBuffers' and 'useMethodMarshaller' are mutually exclusive."
            );
        }
        return option(USE_METHOD_MARSHALLER.newValue(useMethodMarshaller));
    }
Sets whether to respect the marshaller specified in gRPC {@link MethodDescriptor}.
If disabled, the default marshaller will be used, which is more efficient.
This property is disabled by default.
grpc/src/main/java/com/linecorp/armeria/client/grpc/GrpcClientBuilder.java