package common

type WithUpstream interface {
	Upstream() any
}

func Cast[T any](obj any) (T, bool) {
	if c, ok := obj.(T); ok {
		return c, true
	}
	if u, ok := obj.(WithUpstream); ok {
		return Cast[T](u.Upstream())
	}
	var defaultValue T
	return defaultValue, false
}