from libc.stdint cimport uint16_t, uint32_t, uint64_t, uintptr_t
ctypedef uint64_t hash_t
ctypedef char* utf8_t
ctypedef uint32_t attr_t
ctypedef uint64_t flags_t
ctypedef uint32_t id_t
ctypedef uint16_t len_t
ctypedef uint16_t tag_t