pub unsafe extern "C" fn g_main_context_find_source_by_funcs_user_data(
context: *mut GMainContext,
funcs: *mut GSourceFuncs,
user_data: gpointer
) -> *mut GSource
pub unsafe extern "C" fn g_main_context_find_source_by_funcs_user_data(
context: *mut GMainContext,
funcs: *mut GSourceFuncs,
user_data: gpointer
) -> *mut GSource