code: func (v *Stack) SetVisibleChildName(name string) {
  	cstr := C.CString(name)
  	defer C.free(unsafe.Pointer(cstr))
  	C.gtk_stack_set_visible_child_name(v.native(), (*C.gchar)(cstr))
  }
docs: // SetVisibleChildName is a wrapper around gtk_stack_set_visible_child_name().