src/Queue/Strategy/LogStrategy.php
public function injectLogger(bool $flag = null) : bool
    {
        if (null === $flag) { return $this->injectLogger; }

        $this->injectLogger = $flag;
        return $flag;
    }
public function injectLogger(bool $flag = null) : bool
    {
        if (null === $flag) { return $this->injectLogger; }

        $this->injectLogger = $flag;
        return $flag;
    }
Set or get the injectLogger flag

If called with an argument, sets the flag accordingly and returns
it.

@param bool|null $flag
@return bool