Set writeOnly and readOnly jsonSchema's value options

[amendezcabrera]

I am using your library to automatically generate the GraphQL Schema but I need to set some values from the jsonSchema as readOnly and writeOnly as shown in their docs.
Is this possible? And how can I do it?
Thank you

[amendezcabrera]

This can be achieved in the afterGet method:

$afterGet(queryContext) {
    delete this.returning_value;
}

It would be nice to just set the writeOnly parameter to the property but this does the job.