{
    "version": 2,
    "triggerSource": "string",
    "region": "us-east-1",
    "userPoolId": "abcd123",
    "userName": "myNameIsAJ",
    "callerContext": {
        "awsSdkVersion": "1",
        "clientId": "abc1234"
    },
    "request": {
        "userAttributes": {
            "someAttr": "someValue"
        }
    },
    "response": {}
}