| 123456789101112131415161718192021 | // Package common contains common utilities that are shared among other packages.// See each sub-package for detail.package commonimport (	"errors")var (	ErrObjectReleased   = errors.New("Object already released.")	ErrBadConfiguration = errors.New("Bad configuration.")	ErrObjectNotFound   = errors.New("Object not found.")	ErrDuplicatedName   = errors.New("Duplicated name."))// Must panics if err is not nil.func Must(err error) {	if err != nil {		panic(err)	}}
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