xml_element_serialize  477 ext/xmlrpc/libxmlrpc/xml_element.c              xml_element_serialize(kids, fptr, data, options, depth);
xml_element_serialize  537 ext/xmlrpc/libxmlrpc/xml_element.c    xml_element_serialize(el, simplestring_out_fptr, (void *)&buf, options, 0);
xml_element_serialize  568 ext/xmlrpc/libxmlrpc/xml_element.c    xml_element_serialize(el, file_out_fptr, (void *)output, options, 0);