code: def add(self, resource, provider_uri_or_id, timeout=-1):
          
          uri = self._provider_client.build_uri(provider_uri_or_id) + "/device-managers"
          return self._client.create(resource=resource, uri=uri, timeout=timeout)
docs: Adds a Device Manager under the specified provider.
  
          Args:
              resource (dict): Object to add.
              provider_uri_or_id: ID or URI of provider.
              timeout:
                  Timeout in seconds. Wait for task completion by default. The timeout does not abort the operation
                  in OneView, just stop waiting for its completion.
  
          Returns:
              dict: Added SAN Manager.