getObjectProperties(id, keys) {
    const object = this._graphics.getObject(id);
    if (!object) {
      return null;
    }

    return this._graphics.getObjectProperties(id, keys);
  }
Get properties of active object corresponding key
@param {number} id - object id
@param {Array<string>|ObjectProps|string} keys - property's key
@returns {ObjectProps} properties if id is valid or null
@example
var props = imageEditor.getObjectProperties(id, 'left');
console.log(props);
@example
var props = imageEditor.getObjectProperties(id, ['left', 'top', 'width', 'height']);
console.log(props);
@example
var props = imageEditor.getObjectProperties(id, {
    left: null,
    top: null,
    width: null,
    height: null,
    opacity: null
});
console.log(props);