import { Buffer } from 'node:buffer';
import { EventEmitter } from 'node:events';
import PNGSync from './png-sync';
import type { DecodeOptions } from './decode-budget';
declare interface PNGOptions extends DecodeOptions {
  width?: number
  height?: number
  fill?: boolean
  skipRescale?: boolean
  checkCRC?: boolean
  deflateChunkSize?: number
  deflateLevel?: number
  deflateStrategy?: number
  inputHasAlpha?: boolean
  bitDepth?: 8 | 16
  colorType?: number
  inputColorType?: number
  filterType?: number
}
export declare class PNG extends EventEmitter {
  width: number;
  height: number;
  data: Buffer | null;
  gamma: number;
  readable: boolean;
  writable: boolean;
  static sync: typeof PNGSync;
  constructor(options?: PNGOptions);
  pack(): this;
  parse(data: Buffer, callback?: (err: Error | null, png: PNG | null) => void): this;
  write(data: Buffer): boolean;
  end(data?: Buffer): void;
  static bitblt(src: PNG, dst: PNG, srcX: number, srcY: number, width: number, height: number, deltaX: number, deltaY: number): void;
  bitblt(dst: PNG, srcX: number, srcY: number, width: number, height: number, deltaX: number, deltaY: number): this;
  static adjustGamma(src: PNG): void;
  adjustGamma(): void;
}
export default PNG;