Query on childProductsCount for the Collections End Point

Summary:

Trying to get a list of collections that do not have any products assigned to them. When I perform this command the API call returns:

{

    "errorCode": "85003",

    "message": "Invalid attribute in query: childProductsCount",

    "status": "400"

}

Content (required):

{

            "longDescription": null,

            "childProductsCount": 0,

            "categoryImages": [],

            "displayName": "Adhesives and Sealants",

            "categoryPaths": [

                "/Storefront Navigation/Adhesives and Sealants"

            ],

            "active": true,

            "description": null,

            "categoryIdPaths": [

                "rootCategory>mixcat_adhesives_and_sealants"

            ],

            "childCategories": null,

            "fixedParentCategories": [

                {

                    "repositoryId": "rootCategory"

                }

            ],

            "creationDate": "2023-06-26T17:29:30.000Z",

            "route": "/adhesives-and-sealants/category/mixcat_adhesives_and_sealants",

            "repositoryId": "mixcat_adhesives_and_sealants",

            "parentCategory": {

                "repositoryId": "rootCategory"

            },

            "id": "mixcat_adhesives_and_sealants"

        },

{

            "longDescription": null,

            "childProductsCount": 19,

            "categoryImages": [],

            "displayName": "Arm",

            "categoryPaths": [

                "/Storefront Navigation/PARTS/Hydraulic Plumbing/Arm"