+extern const char *afb_hreq_get_cookie(struct afb_hreq *hreq, const char *name);
+
+extern const char *afb_hreq_get_argument(struct afb_hreq *hreq, const char *name);
+
+extern const char *afb_hreq_get_header(struct afb_hreq *hreq, const char *name);
+