{
   "black" : {
      "version" : {
         "type" : "string",
         "value" : ">=18.9b0"
      },
      "allow_prereleases" : {
         "value" : "true",
         "type" : "bool"
      },
      "python" : {
         "type" : "string",
         "value" : ">3.6"
      }
   }
}