CCM::enableTracing PHP Method

    public function enableTracing($isEnabled)
    {
        $nodes = $this->dataCenterOneNodes + $this->dataCenterTwoNodes;
        for ($node = 1; $node <= $nodes; ++$node) {
            $this->run('node' . $node, 'nodetool', 'settraceprobability', (bool) $isEnabled ? 1 : 0);
        }
    }