code: func (mux *Multiplexer) NewProtoManualConnection(name string, serializer keyval.Serializer) *ProtoManualConnection {
  	return &ProtoManualConnection{ProtoConnectionFields{multiplexer: mux, serializer: serializer, name: name}}
  }
docs: // NewProtoManualConnection creates instance of the ProtoConnectionFields that provides access to shared
  // Multiplexer's clients with manual partitioner.