// Close closes the obj if it is a Closable.
Close closes the obj if it is a Closable.
// Close closes the obj if it is a Closable .
func Close(obj interface{}) error {
	if c, ok := obj.(Closable); ok {
		return c.Close()
	}
	return nil
}
func Close ( obj interface { } ) error { if c , ok := obj . ( Closable ) ; ok { return c . Close ( ) } return nil }
Close closes the obj if it is a Closable.
Close closes the obj if it is a Closable .