func (s *Set) Clear() {
	s.Lock()
	defer s.Unlock()
	s.m = make(map[interface{}]struct{})
}
func (s *Set) Clear() {
	s.Lock()
	defer s.Unlock()
	s.m = make(map[interface{}]struct{})
}
func ( s * Set ) Clear ( ) { s . Lock ( ) defer s . Unlock ( ) s . m = make ( map [ interface { } ] struct { } ) }
// Clear empties the set.
Clear empties the set .