+/** \brief writes JSON tree with indentation (pretty print)
+ \param node JSON tree
+ \param result resulting JSON string buffer
+*/
+YAZ_EXPORT
+void json_write_wrbuf_pretty(struct json_node *node, WRBUF result);
+
+/** \brief writes JSON text to WRBUF with escaping
+ \param b result
+ \param str input string to be encoded
+*/
+YAZ_EXPORT
+void wrbuf_json_puts(WRBUF b, const char *str);
+