pub unsafe extern "C" fn gdk_wayland_toplevel_set_transient_for_exported(
toplevel: *mut GdkWaylandToplevel,
parent_handle_str: *const c_char,
) -> gboolean
pub unsafe extern "C" fn gdk_wayland_toplevel_set_transient_for_exported(
toplevel: *mut GdkWaylandToplevel,
parent_handle_str: *const c_char,
) -> gboolean