OptionalcontainerThe container in which to make the request (defaults to current container)
OptionalfailureThis will be called upon failure to complete a request.
OptionalscopeA scoping object for the success and failure callback functions (default to this).
OptionalsignalAborts the request when this signal aborts. Use Ajax.isAborted() on the failure callback's response to tell an abort from a failure. Only cancellable requests are stopped on the server; an aborted write may still complete.
OptionalsuccessThis will be called upon successfully completing a request.
Client supplied identifier returned in a call to getSessions()