/*
 * Set the RDF to use for data extraction for a MusicBrainz::Client object.
 *
 * Note: Advanced users only.
 *
 * Aliases:
 *   MusicBrainz::Client#set_rdf
 *   MusicBrainz::Client#result_rdf=
 *   MusicBrainz::Client#set_result_rdf
 *
 * Example:
 *   mb.rdf = result_rdf
 *
 */
static VALUE mb_client_set_rdf(VALUE self, VALUE rdf) {