internal

var (
	CommitSHA      = "N/A"
	BuildTimestamp = "N/A"
	Version        = "N/A"
)

var ErrBadInput = errors.New("bad input")

ErrBadInput signals that one of the parameters/arguments for the method/function has a bad value: empty, too big, too small, etc.

var ErrNotFound = errors.New("not found")

ErrNotFound shows that the requested value was not found (or doesn't exist).

var ErrNotUnique = errors.New("not unique")

ErrNotUnique shows that the value used already exists (is a duplicate of another value).