How to use the traverse.deepEqual function in traverse

Test.prototype.deepEqual = function (x, y, desc) {
    this.count ++;
    if (this.planned && this.count > this.planned) {
        this.emit('fail', 'more tests run than planned');
    }
    else if (!this.running) {
        this.emit('fail', 'deepEqual() called after test ended');
    }
    else if (traverse.deepEqual(x, y)) {
        this.emit('ok', 'deepEqual', x, y, desc);
    }
    else {
        this.emit('fail', 'deepEqual', x, y, desc);
    }
    
    if (this.planned && this.count === this.planned) this.end();
};

Test.prototype.notDeepEqual = function (x, y, desc) {
    this.count ++;
    if (this.planned && this.count > this.planned) {
        this.emit('fail', 'more tests run than planned');
    }
    else if (!this.running) {
        this.emit('fail', 'notDeepEqual() called after test ended');
    }
    else if (!traverse.deepEqual(x, y)) {
        this.emit('ok', 'notDeepEqual', x, y, desc);
    }
    else {
        this.emit('fail', 'notDeepEqual', x, y, desc);
    }
    
    if (this.planned && this.count === this.planned) this.end();
};