code: func (v *Layout) SetFontDescription(desc *FontDescription) {
  	C.pango_layout_set_font_description(v.native(), desc.native())
  }
docs: //void           pango_layout_set_markup_with_accel (PangoLayout    *layout,
  //						   const char     *markup,
  //						   int             length,
  //						   gunichar        accel_marker,
  //						   gunichar       *accel_char);
  /*
  func (v *Layout)SetMarkupWithAccel (text string, length int, accel_marker, accel_char rune){
  	cstr := C.CString(text)
  	defer C.free(unsafe.Pointer(cstr))
  	C.pango_layout_set_markup_with_accel (v.native(),  (*C.char)(cstr), (C.int)(length), (C.gunichar)(accel_marker), (C.gunichar)(accel_char) )
  }
  */
  //void           pango_layout_set_font_description (PangoLayout                *layout,
  //						  const PangoFontDescription *desc);