updatedData
Call updatedData with the data returned from underlying behavior's implementation of
updateData.
    updateData(instanceData)
  
  Extends the underlying behavior's updateData to call updatedData with the returned
response data. The result of the call to updatedData will be used as the new response data.
Parameters
- instanceData 
{Object}:the raw data of an instance
 
Returns
 {Promise<Object>}: 
Promise resolving the raw response data, possibly modified by updatedData.