code: def do_start_role(self, role):
          
          if not role:
              return None
  
          if not self.has_cluster():
              return None
  
          if '-' not in role:
              print("Please enter a valid role name")
              return None
  
          try:
              service = api.get_cluster(self.cluster).get_service(role.split('-')[0])
              service.start_roles(role)
              print("Starting Role")
          except ApiException:
              print("Error: Role or Service Not Found")
docs: Start a role
          Usage:
              > start_role <role>     Restarts this role