library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

static method main() → dynamic {
  core::Object? a;
  core::Object? b;
  return <core::Object?>[let final core::Object? #t1 = a in #t1 == null ?{core::Object?} b : #t1{core::Object}];
}