code: func (c *Client) DomainInfo(appIdentity string, domainIdentity string) (*Domain, error) {
  	var domain Domain
  	return &domain, c.Get(&domain, "/apps/"+appIdentity+"/domains/"+domainIdentity)
  }
docs: // Info for existing domain.
  //
  // appIdentity is the unique identifier of the Domain's App. domainIdentity is
  // the unique identifier of the Domain.