anchor.diff:  * Change LSN
   * Commit LSN (omitted if this event is part of a snapshot)
   
  -|7
  +|9
   |`op`
  -a| Mandatory string that describes the type of operation that caused the connector to generate the event. In this example, `c` indicates that the operation created a row. Valid values are:
  +a|Mandatory string that describes the type of operation that caused the connector to generate the event. In this example, `c` indicates that the operation created a row. Valid values are:
   
   * `c` = create
   * `u` = update
   * `d` = delete
   * `r` = read (applies to only snapshots)
   
  -|8
  +|10
   |`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.
  +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.
   
   |===
   
  
positive.code:       }
      ],
      "optional": false,
      "name": "mydatabase.MYSCHEMA.CUSTOMERS.Envelope"  // <2>
    },
    "payload": {  // <3>
      "before": null,  // <4>
      "after": {  // <5>
        "ID": 1005,
        "FIRST_NAME": "john",
        "LAST_NAME": "doe",
        "EMAIL": "john.doe@example.org"
      },
      "source": {  // <6>
        "version": "{debezium-version}",
        "connector": "db2",
        "name": "myconnector",
  
negative.code:       "change_lsn": "00000027:00000758:0003",
        "commit_lsn": "00000027:00000758:0005",
      },
      "op": "c",  // <9>
      "ts_ms": 1559729471739  // <10>
    }
  }
  ----
  