export interface CA {
    draw(step: any[]): Promise<void>;
    drawImage(imageBitmap: ImageBitmap): void;
    clear(): Promise<void>;
    strokePath(d: string): void;
    scale(sx: number, sy: number): void;
    fillPath(d: string, fillRule: string): void;
    toBlob(type: string, quality: number): Promise<Blob>;
}
