Handle the ActionDefineFunction2 action.

def _handle_actiondefinefunction2(self, _):
        """Handle the ActionDefineFunction2 action."""
        obj = _make_object("ActionDefineFunction2")
        obj.FunctionName = self._get_struct_string()
        obj.NumParams = unpack_ui16(self._src)
        obj.RegisterCount = unpack_ui8(self._src)
        bc = BitConsumer(self._src)
        obj.PreloadParentFlag = bc.u_get(1)
        obj.PreloadRootFlag = bc.u_get(1)
        obj.SupressSuperFlag = bc.u_get(1)
        obj.PreloadSuperFlag = bc.u_get(1)
        obj.SupressArgumentsFlag = bc.u_get(1)
        obj.PreloadArgumentsFlag = bc.u_get(1)
        obj.SupressThisFlag = bc.u_get(1)
        obj.PreloadThisFlag = bc.u_get(1)
        obj.Reserved = bc.u_get(7)
        obj.PreloadGlobalFlag = bc.u_get(1)
        obj.Parameters = parameters = []
        for _ in range(obj.NumParams):
            parameter = _make_object("Parameter")
            parameters.append(parameter)
            parameter.Register = unpack_ui8(self._src)
            parameter.ParamName = self._get_struct_string()
        obj.CodeSize = unpack_ui16(self._src)
        yield obj