protocol.json

{
  "types": {
    "test_type": "i8",
  },
}

test_out.js

function(native_types) {
  return {
    
    test_type: {
      write: function(buf, val) { // What kinda what should it write to?
        native_types["i8"]["write"](buf, val);
      },
      read: function(buf, val) { // What kinda what should it read from?
        return native_types["i8"]["read"](buf, val);
      },
    },
    
  };
}