import type { PngEncoderOptions } from 'fast-png';
import type { Image } from '../Image.js';
import { Mask } from '../Mask.js';
export type EncodePngOptions = PngEncoderOptions;
/**
 * Creates a PNG buffer from an image.
 * @param image - The image instance.
 * @param options - PNG encoding options.
 * @returns The buffer.
 */
export declare function encodePng(image: Image | Mask, options?: EncodePngOptions): Uint8Array;
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