formats.exposed/types/png.d.ts

import { PngNodeType } from "../public/png/constants.js";

type Node<T> = {
  /**
   * The type of this node. Typically an enum specific to the format.
   */
  type: T;

  /**
   * The bytes that make up this node.
   *
   * It is highly encouraged to use `Uint8Array.prototype.subarray`,
   * not `.slice`, to avoid copying the data.
   */
  bytes: Uint8Array;

  /**
   * Child nodes.
   */
  children?: ReadonlyArray<Node<T>>;
};

export type PngNode = Node<PngNodeType>;