library;
import self as self;
import "dart:core" as core;

class Isgen<B extends core::Object> extends core::Object {
  default constructor •() → void
    : super core::Object::•()
    ;
  method getfn() → dynamic {
    return MakeClosure<<B extends core::Object>(dynamic) → dynamic, self::Isgen::B>(self::closure#Isgen#getfn#function, MakeVector(1));
  }
}
static method main() → dynamic {
  core::int x = 3;
  dynamic isgen = new self::Isgen::•<core::String>();
  dynamic iser = isgen.getfn();
  assert(!iser.call(x));
}
static method closure#Isgen#getfn#function<B extends core::Object>(dynamic #contextParameter, dynamic x) → dynamic {
  return x is self::closure#Isgen#getfn#function::B;
}