Reading a deal when the person is hidden

[GreggDeB]

I found that if I try to read a deal when someone else has set the person_id to a person that is hidden from me, pipedrive only returns the person_id. This will cause the deserialize routine to fail because the format of the return JSON data does not match the structure of deal class. I don't know the best way to fix this but I was able to add an [onerror] property to the deal class so that I could get the data without generating an exception. I would appreciate a suggestion on the best way to address this issue.