One of these things is not XML

gistfile1.txt

botocore.parsers.ResponseParserError: Unable to parse response (not well-formed (invalid token): line 1, column 0), invalid XML received:
{
  "CreateDBInstanceResponse": {
    "CreateDBInstanceResult": {
      "DBInstance": {
        "AllocatedStorage": 10,
        "AutoMinorVersionUpgrade": "True",
        "AvailabilityZone": "None",
        "BackupRetentionPeriod": "1",
        "CharacterSetName": null,
        "DBInstanceClass": "db.t2.micro",
        "DBInstanceIdentifier": "foo",
        "DBInstanceStatus": "available",
        "DBName": null,

        "DBSecurityGroups": [

        ],
        "Engine": "Aurora",
        "EngineVersion": "None",
        "LatestRestorableTime": null,
        "LicenseModel": "general-public-license",
        "MasterUsername": "None",
        "MultiAZ": "None",
        "PendingModifiedValues": { "MasterUserPassword": "****" },
        "PreferredBackupWindow": "13:14-13:44",
        "PreferredMaintenanceWindow": "wed:06:38-wed:07:08",
        "PubliclyAccessible": "True",
        "AllocatedStorage": "None",
        "Endpoint": {
            "Address": "foo.aaaaaaaaaa.us-west-2.rds.amazonaws.com",
            "Port": "None"
        },
        "InstanceCreateTime": null,
        "Iops": null,
        "ReadReplicaDBInstanceIdentifiers": [],"ReadReplicaSourceDBInstanceIdentifier": null,"SecondaryAvailabilityZone": null,
        "StatusInfos": null,
        "VpcSecurityGroups": [
            {
                "Status": "active",
                "VpcSecurityGroupId": "sg-123456"
            }
        ]
      }
    },
    "ResponseMetadata": { "RequestId": "523e3218-afc7-11c3-90f5-f90431260ab4" }
  }
}