Not compatible with new psi version

Is it possible that this example is not compatible with the new psi version?

I get an `string expected` error. The way i could solve the problem is to use the following code in my gulp task:

`psi.output(site, {`
`nokey: 'true', // or use key: ‘YOUR_API_KEY’`
`strategy: 'mobile'`
`}, cb);`

psi version: 1.0.2