{
    "from" : "jobs",
    "let" : {
        "searchId" : "$jobId"
    },
    "pipeline" : [
        {
            "$search" : {
                "queryString" : {
                    "defaultPath" : "_id",
                    "query" : "$$searchId"
                }
            }
        },
        {
            "$project" : {
                "test.tool" : 1,
                "test.type" : 1,
                "test.weight" : 1
            }
        }
    ],
    "as" : "test"
}