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diff --git a/vendor/chillerlan/php-qrcode/src/Common/LuminanceSourceInterface.php b/vendor/chillerlan/php-qrcode/src/Common/LuminanceSourceInterface.php
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index 000000000..64409e36a
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+++ b/vendor/chillerlan/php-qrcode/src/Common/LuminanceSourceInterface.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * Interface LuminanceSourceInterface
+ *
+ * @created      18.11.2021
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2021 smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCode\Common;
+
+/**
+ */
+interface LuminanceSourceInterface{
+
+	/**
+	 * Fetches luminance data for the underlying bitmap. Values should be fetched using:
+	 * `int luminance = array[y * width + x] & 0xff`
+	 *
+	 * @return array A row-major 2D array of luminance values. Do not use result $length as it may be
+	 *         larger than $width * $height bytes on some platforms. Do not modify the contents
+	 *         of the result.
+	 */
+	public function getLuminances():array;
+
+	/**
+	 * @return int The width of the bitmap.
+	 */
+	public function getWidth():int;
+
+	/**
+	 * @return int The height of the bitmap.
+	 */
+	public function getHeight():int;
+
+	/**
+	 * Fetches one row of luminance data from the underlying platform's bitmap. Values range from
+	 * 0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have
+	 * to bitwise and with 0xff for each value. It is preferable for implementations of this method
+	 * to only fetch this row rather than the whole image, since no 2D Readers may be installed and
+	 * getLuminances() may never be called.
+	 *
+	 * @param int $y  The row to fetch, which must be in [0,getHeight())
+	 *
+	 * @return array An array containing the luminance data.
+	 * @throws \chillerlan\QRCode\Decoder\QRCodeDecoderException
+	 */
+	public function getRow(int $y):array;
+
+	/**
+	 * Creates a LuminanceSource instance from the given file
+	 */
+	public static function fromFile(string $path):self;
+
+	/**
+	 * Creates a LuminanceSource instance from the given data blob
+	 */
+	public static function fromBlob(string $blob):self;
+
+}