I have the following result in my document.
I wanted to update the property value for "Type" and "Workout", such that it doesn't effect other values

```
"PartyId": 10114795,
"WorkoutId": 4,
"Type": "heart-rate-zone-target",
"DateStarted": "2016-02-05T18:14:15.1620890Z",
"id": "0c44d1ee-58b8-4083-a702-f770ba0e63e9",
"_rid": "0ThoANQ4YwEEAAAAAAAAAA==",
"_self": "dbs/0ThoAA==/colls/0ThoANQ4YwE=/docs/0ThoANQ4YwEEAAAAAAAAAA==/",
"_etag": "\"08000130-0000-0000-0000-58dd72da0000\"",
"_attachments": "attachments/",
"_ts": 1490907866

```