Object.getOwnPropertyDescriptor(db, "watch")
{
	"value" : function (pipeline, options) {
        pipeline = pipeline || [];
        options = options || {};
        assert(pipeline instanceof Array, "'pipeline' argument must be an array");
        assert(options instanceof Object, "'options' argument must be an object");

        let changeStreamStage = {fullDocument: options.fullDocument || "default"};
        delete options.fullDocument;

        if (options.hasOwnProperty("resumeAfter")) {
            changeStreamStage.resumeAfter = options.resumeAfter;
            delete options.resumeAfter;
        }

        if (options.hasOwnProperty("startAtOperationTime")) {
            changeStreamStage.startAtOperationTime = options.startAtOperationTime;
            delete options.startAtOperationTime;
        }

        pipeline.unshift({$changeStream: changeStreamStage});
        return this._runAggregate({aggregate: 1, pipeline: pipeline}, options);
    },
	"writable" : true,
	"enumerable" : false,
	"configurable" : true
}