anchor.diff:          "ord": 31,
           "h": 1546547425148721999
         },
  -      "op": "c", <6>
  -      "ts_ms": 1558965515240 <7>
  +      "op": "c", // <8>
  +      "ts_ms": 1558965515240 // <9>
       }
     }
   ----
  
positive.code:         }
        ],
        "optional": false,
        "name": "dbserver1.inventory.customers.Envelope" <2>
        },
      "payload": { <3>
        "after": "{\"_id\" : {\"$numberLong\" : \"1004\"},\"first_name\" : \"Anne\",\"last_name\" : \"Kretchmar\",\"email\" : \"annek@noanswer.org\"}", <4>
        "patch": null,
        "source": { <5>
          "version": "{debezium-version}",
          "connector": "mongodb",
          "name": "fulfillment",
  
negative.code: 
  |1
  |`op`
  a|Mandatory string that describes the type of operation that caused the connector to generate the event. In this example, `u` indicates that the operation updated a document. 
  
  |2
  |`ts_ms`
  a|Optional field that displays the time at which the connector processed the event. The time is based on the system clock in the JVM running the Kafka Connect task.
  
  |3
  |`patch`
  