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

typedef A<contravariant T extends core::num*> = (T*) →* dynamic;
static field core::Map<(core::num*) →* dynamic, (core::num*) →* dynamic>* a = <(core::num*) →* dynamic, (core::num*) →* dynamic>{};
static method main() → dynamic {}