$processors
$processors : callable[]
Sends errors to Rollbar
If the context data contains a payload key, that is used as an array
of payload options to RollbarLogger's log method.
Rollbar's context info will contain the context + extra keys from the log record merged, and then on top of that a few keys:
$processors : callable[]
$formatter : ?\Monolog\Formatter\FormatterInterface
$level : int
$bubble : bool
$levelMap : string[]
$initialized : bool
$hasRecords : bool
Records whether any log records have been added since the last flush of the rollbar notifier