The name of the domain that contains the task lists being polled.
Identity of the worker making the request, recorded in the
ActivityTaskStarted event in the workflow history. This enables diagnostic
tracing when problems arise. The form of this identity is user defined.
Specifies the task list to poll for activity tasks.
The specified string must not start or end with whitespace. It must not contain a
| (vertical bar), or any
control characters (
\u007f-\u009f). Also, it must
not be the literal string