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

class C<T extends core::Object? = dynamic> extends core::Object {
  constructor optional(([self::C::T%]) → void func) → self::C<self::C::T%>
    ;
  constructor named(({x: self::C::T%}) → void func) → self::C<self::C::T%>
    ;
}
static method optional_toplevel([has-declared-initializer dynamic x]) → void
  ;
static method named_toplevel({has-declared-initializer dynamic x}) → void
  ;
static method main() → dynamic
  ;