function(instanceData)

Updates a record given the serialized form of the data. Returns a promise that resolves to a object that contains the new properties and values of the record.

An example request and response might look like:

connection.updateData({
    id: 5,
    name: "do dishes",
    createdAt: 1477104548997
}).then(function(instanceData){
    instanceData //-> {
    //  id: 5,
    //  name: "do dishes",
    //  createdAt: 1477104540000,
    //  updatedAt: 1477104580000
    //}
})

The following shows how constructor calls updateData and what it does with the response:

// get its raw data
var instanceData = connection.serializeInstance(myInstance);

connection.updateData(instanceData).then(function(updatedInstanceData){
  connection.updatedInstance(myInstance, updatedInstanceData);
})