lval* builtin_put(lenv* e, lval* a) { return builtin_var(e, a, "="); }
ussval_t* builtin_put(ussenv_t* e, ussval_t* a) { return builtin_var(e, a, "="); }
lval* builtin_def(lenv* e, lval* a) { return builtin_var(e, a, "def"); }
ussval_t* builtin_def(ussenv_t* e, ussval_t* a) { return builtin_var(e, a, "def"); }