private function storeDebug(CommandInterface $command, $direction)
{
$firtsArg = $command->getArgument(0);
$timestamp = round(microtime(true) - $this->tstart, 4);
$debug = $command->getId();
$debug .= isset($firtsArg) ? " {$firtsArg} " : ' ';
$debug .= "{$direction} {$this}";
$debug .= " [{$timestamp}s]";
$this->debugBuffer[] = $debug;
}