pub fn read_userdata<'t, 'c, T>(
lua: &'c mut InsideCallback,
index: i32,
) -> Result<&'t mut T, &'c mut InsideCallback>where
T: 'static + Any,pub fn read_userdata<'t, 'c, T>(
lua: &'c mut InsideCallback,
index: i32,
) -> Result<&'t mut T, &'c mut InsideCallback>where
T: 'static + Any,