This handler can launch a Symfony command.
Example in a controller :
<?php
$params = ["command" => "my:command",
"arguments" => [
"firstArg" => $firstArgValue,
"secondArg" => $secondArgValue,
// ...
], //can be empty
"options" => [
"firstOption" => $firstOptionValue,
"secondOption" => $secondOptionValue,
"thirdOption" => $thirdOptionValue,
// ...
] //can be empty
];
$this
->get("cn_pending_actions.pending_actions_service")
->register(
"CommandHandler",
$params,
"my_group_label"
);