Macro drop 

macro_rules! drop {
    ($loaned:expr) => { ... };
}

Drops the value from a Loaned or LoanedMut, statically ensuring that 't is expired.

Example

use loaned::{drop, LoanedMut};
let (borrow, loaned) = LoanedMut::loan(Box::new(123));
*borrow *= 2;
assert_eq!(*borrow, 246);
drop!(loaned); // drops the box