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

static method f(core::List<dynamic> x) → core::bool {
  return x.{core::Iterable::expand}<dynamic>((dynamic y) → core::Iterable<dynamic> {
    return y.split(",") as{TypeError} core::Iterable<dynamic>;
  }).{core::Iterable::any}((dynamic y) → core::bool => y.{core::Object::==}("z"));
}
static method main() → dynamic {}