Macro drop_code

macro_rules! drop_code {
    [
		@raw $(#[ $meta:meta ]:)* $name_struct:ident ( $($($args_in:tt)+)? ) {
			$($drop_code:tt)*
		}
	] => { ... };
    [
		$(#[ $meta:meta ]:)* $name_struct:ident ( $($args_in:tt)* ) {
			$($drop_code:tt)*
		}
	] => { ... };
    [
		$(#[ $meta:meta ]:)* ( $($args_in:tt)* ) {
			$($drop_code:tt)*
		}
	] => { ... };
    [
		$($drop_code:tt)*
	] => { ... };
    [ $($unk:tt)* ] => { ... };
}

Macro for ensuring critical code execution on function return or panics in Rust, making it easy to include essential code for reliable operation.