error (MusicBrainz::Client)

    /*
     * Retrieve error from last call to MusicBrainz::Client#query with this MusicBrainz::Client object.
     *
     * Aliases:
     *   MusicBrainz::Client#get_error
     *   MusicBrainz::Client#get_query_error
     *
     * Example:
     *   # simple query and error return
     *   query = MusicBrainz::Query::GetStatus
     *   puts 'Error: ' << mb.error unless mb.query query
     *
     */
    static VALUE mb_client_error(VALUE self) {