library /*isNonNullableByDefault*/;
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{dynamic}.split(",") as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>;
  }){((dynamic) → core::Iterable<dynamic>) → core::Iterable<dynamic>}.{core::Iterable::any}((dynamic y) → core::bool => y =={core::Object::==}{(core::Object) → core::bool} "z"){((dynamic) → core::bool) → core::bool};
}
static method main() → dynamic {}