code: func MustCreateProvisionToken(token string, roles teleport.Roles, expires time.Time) ProvisionToken {
  	t, err := NewProvisionToken(token, roles, expires)
  	if err != nil {
  		panic(err)
  	}
  	return t
  }
docs: // MustCreateProvisionToken returns a new valid provision token
  // or panics, used in testes