func (s *HashMultiMap[K, V]) Put(key K, value V) {
	values, ok := s.data[key]
	if !ok {
		values = make([]V, 0)
	}
	values = append(values, value)
	s.data[key] = values
}
// Put key/value pair to the multi map
Put key/value pair to the multi map
// Put key / value pair to the multi map
func (s *HashMultiMap[K, V]) Put(key K, value V) {
	values, ok := s.data[key]
	if !ok {
		values = make([]V, 0)
	}
	values = append(values, value)
	s.data[key] = values
}
func ( s * HashMultiMap [ K , V ] ) Put ( key K , value V ) { values , ok := s . data [ key ] if ! ok { values = make ( [ ] V , 0 ) } values = append ( values , value ) s . data [ key ] = values }
Put key/value pair to the multi map
Put key / value pair to the multi map