Return a list of all the PIF_metrics instances known to the system.
| Return value | ||
| type | description | |
| Set[PIF_metrics] | references to all objects | |
| Parameters | ||
| name | type | description |
| session_id | session | valid session reference |
| Errors | ||
| name | arguments | description |
- Message has only a synchronous version
- This is an implicit message, derived from its class