* apply the patch from the D458 differential revision
* in IDE:
1. add the following code on top of the `...` method in the `...` file:
```
lang=php
$log = $this->Application->log('test message (user grid)', 555);
$log->addTrace();
$log->addRequestData();
$log->addSessionData(true);
$log->setLogLevel(kLogger::LL_ERROR);
$log->write();
```
2. save changes
* in Admin Console:
# go to the {nav User Management > Users} section (that creates a System Log record, but it isn't visible in the Debugger)
# go to the {nav Logs & Reports > System Log} section
# confirm, that record, generated above, is present in the System Log
# open it for editing
# confirm, that:
# request data is logged and is displayed using Symfony VarDumper component
# session data is logged and is displayed using Symfony VarDumper component
# parameter data in the trace is logged and is displayed using Symfony VarDumper component