code: def get_member(self, username, api=None):
          
          member = Transform.to_automation_member(username)
          api = api or self._API
          return AutomationMember.get(
              id=member, automation=self.id, api=api
          )
docs: Return specified automation member
          :param username: Member username
          :param api: sevenbridges Api instance.
          :return: AutomationMember object