ChartMethod.php

<?php
$asyncResponse = new \dobron\BigPipe\AsyncResponse();
$asyncResponse->bigPipe()->require("require('Chart').setup()", [
    'element' => \dobron\BigPipe\TransportMarker::transportElement('chart-div'),
    'dataPoints' => $asyncResponse->transport()->transportSet([
        ['x' => 10, 'y' => 71],
        ['x' => 20, 'y' => 55],
        ['x' => 30, 'y' => 50],
        ['x' => 40, 'y' => 65],
    ]),
]);
$asyncResponse->send();