code: def getVerifiers(self):
          
          contacts = list()
          for verifier in self.getVerifiersIDs():
              user = api.get_user(verifier)
              contact = api.get_user_contact(user, ["LabContact"])
              if contact:
                  contacts.append(contact)
          return contacts
docs: Returns the list of lab contacts that have verified at least one
          analysis from this Analysis Request