void XSParseKeyword_register_v1(pTHX_ const char *kwname, const struct XSParseKeywordHooks *hooks, void *hookdata);
void XSParseKeyword_register_v2(pTHX_ const char *kwname, const struct XSParseKeywordHooks *hooks, void *hookdata);
void XSParseKeyword_boot(pTHX);