Function gio_2_0_sys::g_dbus_connection_new

pub unsafe extern "C" fn g_dbus_connection_new(
    stream: *mut GIOStream, 
    guid: *const gchar, 
    flags: GDBusConnectionFlags, 
    observer: *mut GDBusAuthObserver, 
    cancellable: *mut GCancellable, 
    callback: Option<GAsyncReadyCallback>, 
    user_data: gpointer
)