{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
        let unbound_types = self.get_unbound_associated_types();
        let num_provided_type_const_args = self.num_provided_type_or_const_args();
        let num_provided_args = num_provided_lt_args + num_provided_type_const_args;