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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _handle_param_list(self, node, scope, ctxt, stream):
 """Handle ParamList nodes :node: TODO :scope: TODO :ctxt: TODO :stream: TODO :returns: TODO """

        self._dlog("handling param list")
        # params should be a list of tuples:
        # [(<name>, <field_class>), ...]
        params = []
        for param in node.params:
            self._mark_id_as_lazy(param)
            param_info = self._handle_node(param, scope, ctxt, stream)
            params.append(param_info)

        param_list = functions.ParamListDef(params, node.coord)
        return param_list