code: func (sa *StorageAuthority) GetCertificateStatus(_ context.Context, serial string) (core.CertificateStatus, error) {
  	// Serial ee == 238.crt
  	if serial == "0000000000000000000000000000000000ee" {
  		return core.CertificateStatus{
  			Status: core.OCSPStatusGood,
  		}, nil
  	} else if serial == "0000000000000000000000000000000000b2" {
  		return core.CertificateStatus{
  			Status: core.OCSPStatusRevoked,
  		}, nil
  	} else {
  		return core.CertificateStatus{}, errors.New("No cert status")
  	}
  }
docs: // GetCertificateStatus is a mock