use mlua::{Lua, Table};
fn main() {
let lua = Lua::new();
let mut outer: Option<Table> = None;
lua.scope(|scope| {
let f = scope
.create_function_mut(|_, t: Table| {
outer = Some(t);
Ok(())
})?;
f.call::<_, ()>(lua.create_table()?)?;
});
}