Function nm_remote_connection_update2 

pub unsafe extern "C" fn nm_remote_connection_update2(
    connection: *mut NMRemoteConnection,
    settings: *mut GVariant,
    flags: NMSettingsUpdate2Flags,
    args: *mut GVariant,
    cancellable: *mut GCancellable,
    callback: GAsyncReadyCallback,
    user_data: gpointer,
)

Available on crate feature v1_12 only.