if EqualFunc(mf, mf, equal[float64]) {
		t.Errorf("EqualFunc(%v, %v, equal) = true, want false", mf, mf)
	}
	// But it should succeed using equalNaN.
	if !EqualFunc(mf, mf, equalNaN[float64]) {
		t.Errorf("EqualFunc(%v, %v, equalNaN) = false, want true", mf, mf)
	}

	if !EqualFunc(m1, m2, equalIntStr) {
		t.Errorf("EqualFunc(%v, %v, equalIntStr) = false, want true", m1, m2)
	}
}

		}
	}
}

// equal is simply ==.
func equal[T comparable](v1, v2 T) bool {
	return v1 == v2
}

// equalNaN is like == except that all NaNs are equal.
func equalNaN[T comparable](v1, v2 T) bool {
	isNaN := func(f T) bool { return f != f }
	return v1 == v2 || (isNaN(v1) && isNaN(v2))
}

// offByOne returns true if integers v1 and v2 differ by 1.

	lo uint64
	z  *byte
}

func EqualMap[M1, M2 ~map[K]V, K, V comparable](m1 M1, m2 M2) bool {
	for k, v1 := range m1 {
		if v2, ok := m2[k]; !ok || v1 != v2 {
			return false
		}
	}
	return true
}

type Set[T comparable] map[T]struct{}

func NewSet[T comparable](items ...T) Set[T] {
	return nil
}

func (s Set[T]) Equals(other Set[T]) bool {
	return EqualMap(s, other)
}

func main() {