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

static method i1<R extends core::Object? = dynamic>() → <S2 extends self::i1::R? = dynamic>() → void
  return <S2 extends self::i1::R? = self::i1::R?>() → core::Null? {};
static method main() → dynamic {}