PostDataDogSeries

 $response = (new Client())->post('https://api.datadoghq.com/api/v1/series?api_key=' . config('core.datadog.api_key'),
            [
                RequestOptions::JSON => [
                    'series' => [[
                        'metric' => 'test.metric',
                        'points' => [
                            array(365),
                            array(13456789, 123)
                        ],
//                        'type' => 'rate',
//                        'interval' => '10',
                        'host' => 'test.example.com',
                        'tags' => ['environment:test'],
                    ]]
                ]
            ]);