void psi_let_func_dump(int fd, struct psi_let_func *func, unsigned level);
void *psi_let_func_exec(struct psi_let_exp *func_val, struct psi_let_func *func, struct psi_decl_arg *darg, struct psi_call_frame *frame);
-bool psi_let_func_validate(struct psi_data *data, struct psi_let_exp *exp, struct psi_let_func *func, struct psi_impl *impl);
+bool psi_let_func_validate(struct psi_data *data, struct psi_let_func *func, struct psi_validate_scope *scope);
#include "marshal.h"