def METHOD_NAME(client, tags=None, ruleset_name=None):
    if ruleset_name is None:
        ruleset_name = str(uuid.uuid4())
    return client.create_ruleset(
        Name=ruleset_name,
        TargetArn="arn:aws:databrew:eu-west-1:000000000000:dataset/fake-dataset",
        Rules=[
            {
                "Name": "Assert values > 0",
                "Disabled": False,
                "CheckExpression": ":col1 > :val1",
                "SubstitutionMap": {":col1": "`Value`", ":val1": "0"},
                "Threshold": {
                    "Value": 100,
                    "Type": "GREATER_THAN_OR_EQUAL",
                    "Unit": "PERCENTAGE",
                },
            }
        ],
        Tags=tags or {},
    )