pkg/io/opener.go
func IsNotExist(err error) bool {
	return os.IsNotExist(err) || err == storage.ErrObjectNotExist
}
func IsNotExist(err error) bool {
	return os.IsNotExist(err) || err == storage.ErrObjectNotExist
}
func IsNotExist ( err error ) bool { return os . IsNotExist ( err ) || err == storage . ErrObjectNotExist }
// IsNotExist will return true if the error is because the object does not exist.
IsNotExist will return true if the error is because the object does not exist .