syntax = "proto3"; package communication; message MessagePack { bytes data = 1; } message Invocation { string module = 1; string function_name = 2; MessagePack args = 3; }; message InvocationOverride { string module = 1; string function_name = 2; }; message OverrideStatus { int32 status = 1; }; service Forwarder { rpc Forward(Invocation) returns (stream MessagePack); rpc Override(InvocationOverride) returns (OverrideStatus); };