src/Commands/Actions/FilesInteractions.php
protected function replaceShouldQueue(&$stub)
    {
        if (ShouldQueue::$bool) {
            return $stub = str_replace('{{ShouldQueue}}', 'implements ShouldQueue', $stub);
        }

        return $stub = str_replace('{{ShouldQueue}}', '', $stub);
    }
protected function replaceShouldQueue(&$stub)
    {
        if (ShouldQueue::$bool) {
            return $stub = str_replace('{{ShouldQueue}}', 'implements ShouldQueue', $stub);
        }

        return $stub = str_replace('{{ShouldQueue}}', '', $stub);
    }
Replace the {{ShouldQueue}} from Activation mail template.
@param $stub
@return $this