nilstderr:
<stdin>:7:7: warning: expression implicitly coerced from 'Int?' to 'Any' print(a) ^ <stdin>:7:7: note: provide a default value to avoid this warning print(a) ^ ?? <#default value#> <stdin>:7:7: note: force-unwrap the value to avoid this warning print(a) ^ ! <stdin>:7:7: note: explicitly cast to 'Any' with 'as Any' to silence this warning print(a) ^ as Any