fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
if @0⦊true⦉@0 {
if @1,3⦊false⦉@1,3 {
while @6,7⦊true⦉@6,7 @8,10⦊{
}⦉@8,10
}@9⦊‸⦉@9@5⦊‸⦉@5
@11,12,13,14⦊write!(f, "error")⦉@11,12,13,14@16,18,19,20⦊?⦉@16,18,19,20;
} else @2⦊{
}⦉@2@15⦊‸⦉@15
@21⦊Ok(())⦉@21
}@22⦊‸⦉@22