func (mm *StringAppleMap) ContainsKey(k string) bool {
	if mm == nil {
		return false
	}

	mm.s.RLock()
	defer mm.s.RUnlock()

	_, found := mm.m[k]
	return found
}
// ContainsKey determines if a given item is already in the map.
ContainsKey determines if a given item is already in the map.
// ContainsKey determines if a given item is already in the map .
func (mm *StringAppleMap) ContainsKey(k string) bool {
	if mm == nil {
		return false
	}
	mm.s.RLock()
	defer mm.s.RUnlock()
	_, found := mm.m[k]
	return found
}
func ( mm * StringAppleMap ) ContainsKey ( k string ) bool { if mm == nil { return false } mm . s . RLock ( ) defer mm . s . RUnlock ( ) _ , found := mm . m [ k ] return found }
ContainsKey determines if a given item is already in the map.
ContainsKey determines if a given item is already in the map .