export function potrace(
  input: {
    data: Uint8ClampedArray | Uint8Array;
    width: number;
    height: number;
  },
  options: {
    turdsize: number;
    turnpolicy: number;
    alphamax: number;
    opticurve: number;
    opttolerance: number;
    pathonly: boolean;
    extractcolors: boolean;
    posterizelevel: number;
    posterizationalgorithm: number;
  }
): Promise<string>;

export function init(): Promise<void>;