Function glib_sys::g_variant_new_maybe 
source · pub unsafe extern "C" fn g_variant_new_maybe(
    child_type: *const GVariantType,
    child: *mut GVariant
) -> *mut GVariantpub unsafe extern "C" fn g_variant_new_maybe(
    child_type: *const GVariantType,
    child: *mut GVariant
) -> *mut GVariant