init

lib/PhpSpreadsheet/Chart/Renderer/IRenderer.php

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+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Chart\Renderer;
+
+use PhpOffice\PhpSpreadsheet\Chart\Chart;
+
+interface IRenderer
+{
+    /**
+     * IRenderer constructor.
+     */
+    public function __construct(Chart $chart);
+
+    /**
+     * Render the chart to given file (or stream).
+     *
+     * @param ?string $filename Name of the file render to
+     *
+     * @return bool true on success
+     */
+    public function render(?string $filename): bool;
+}