import {fabric} from 'fabric';

declare module 'fabric' {
    namespace fabric {
        interface Object {
            id: string;
            depth?: number;
            formulaX?: string;
            formulaY?: string;
            formulaWidth?: string;
            formulaHeight?: string;
            formulaRotation?: string;
            syncWithVariable?: string;
        }
        interface IObjectOptions {
            canvas?: fabric.Canvas
        }
    }
}


let foobar: fabric.Object = ...;
foo.id = 'blarblar'; // OK
const left = foo.get('left'); // OK