pub unsafe extern "C" fn pango_parse_markup(
    markup_text: *const c_char,
    length: c_int,
    accel_marker: u32,
    attr_list: *mut *mut PangoAttrList,
    text: *mut *mut c_char,
    accel_char: *mut u32,
    error: *mut *mut GError
) -> gboolean