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{
    "Order": {
        "field": "Metadata.Attributes.source",
        "direction": "Asc"
    },
    "Pagination": {
        "pageNumber": 1,
        "perPageLimit": 10
    },
    "MetadataComplexQueryByAttributeRequest": {
        "Operator": "Or",
        "Children": [
            {
                "AttributeName": "source",
                "Operator": "Equal",
                "Value": "KVS"
            },
            {
                "AttributeName": "source",
                "Operator": "Equal",
                "Value": "Visimind"
            }
        ]
    }
}