检查主动配置模板并确认其有效性。在模板中，需要定义设备的属性、策略和证书等。

代码示例：

首先，创建一个主动配置模板，并定义设备属性、策略和证书等：

{
    "Parameters": {
        "ThingType": {
            "Type": "String"
        },
        "ThingName": {
            "Type": "String"
        },
        "IotPolicyName": {
            "Type": "String"
        }
    },
    "Resources": {
        "Thing": {
            "Properties": {
                "AttributePayload": {
                    "version": "v1.0"
                },
                "ThingTypeName": {
                    "Fn::Ref": "ThingType"
                }
            },
            "Type": "AWS::IoT::Thing"
        },
        "IotPolicy": {
            "Properties": {
                "PolicyDocument": {
                    "Statement": [
                        {
                            "Effect": "Allow",
                            "Action": "iot:*",
                            "Resource": "*"
                        }
                    ]
                },
                "PolicyName": {
                    "Fn::Ref": "IotPolicyName"
                }
            },
            "Type": "AWS::IoT::Policy"
        }
    }
}

然后，使用AWS IoT SDK for Python创建一个主动配置：

import boto3

iot = boto3.client('iot')

response = iot.create_provisioning_template(
    templateName='MyProvisioningTemplate',
    description='My Provisioning Template',
    enabled=True,
    preProvisioningHook={
        'payloadVersion': 'v1.0',
        'targetArn': 'arn:aws:lambda:us-west-2:123456789012:function:MyLambdaFunction',
        'payloadDataSource': 'lambda'
    },
    templateBody='{\n  "Parameters": {\n    "ThingType": {\n      "Type": "String"\n    },\n    "ThingName": {\n      "Type": "String"\n    },\n    "IotPolicyName": {\n      "Type": "String"\n    }\n  },\n  "Resources": {\n    "Thing": {\n      "Properties": {\n        "AttributePayload": {\n          "version": "v1.0"\n        },\n        "ThingTypeName": {\n          "Fn::Ref": "ThingType"\n        }\n      },\n      "Type": "AWS::IoT::Thing"\n    },\n    "IotPolicy": {\n      "Properties": {\n        "PolicyDocument": {\n          "Statement": [\n            {\n              "Effect": "Allow",\n              "Action": "iot:*",\n              "Resource": "*"\n            }\n          ]\n        },\n        "PolicyName": {\n          "Fn::Ref": "IotPolicyName"\n        }\n      },\n      "Type": "AWS::IoT::Policy"\n    }\n  }\n}'
)

最后，验证主动配置模板是否有效：

response = iot.describe_provisioning_template(
    templateName='MyProvisioningTemplate'
)

if response['templateArn']:
    print('The provisioning template is valid.')
else:
    print('The provisioning template is invalid.')