{
    "report.generators": {
         "my-report": {
             "generator": "expression",
             "expressions": {
                "mode": "\"This is the mode: \" ~ mode(result_time_avg)"
             },
             "cols": [ "benchmark", "subject", "mode" ]
         }
    }
}
---
phpbench run --report=my-report --executor=debug NothingBench.php --progress=none
---
+--------------+--------------+----------------------+
| benchmark    | subject      | mode                 |
+--------------+--------------+----------------------+
| NothingBench | benchNothing | This is the mode: 10 |
+--------------+--------------+----------------------+

