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

static method error(core::Iterable<core::int>? i2, core::List<core::int>? l2, core::Object o1, core::Object? o2) → dynamic
  ;
static method ok(core::Iterable<core::int> i1, core::List<core::int> l1, dynamic d) → dynamic
  ;
static method main() → dynamic
  ;