| QoSFilter: Quality of Service Filter. | |
| maxRequests: maximum number of requests allowed to be processedat the same time. | |
| waitMs: (short) amount of time (in milliseconds) that the filter would wait for the semaphore to become available before suspending a request. | |
| suspendMs: amount of time (in milliseconds) that the filter would suspend a request for while waiting for the semaphore to become available. |