Refitter fails to generate FormData parameter for file upload about refitter HOT 6 CLOSED

{
   "openapi":"3.0.2",
   "paths":{
      "/foo/{id}/files":{
         "post":{
            "summary":"uploads a file",
            "operationId":"uploadFile",
            "parameters":[
               {
                  "name":"id",
                  "in":"path",
                  "description":"Id of the foo resource",
                  "required":true,
                  "schema":{
                     "type":"integer",
                     "format":"int64"
                  }
               }
            ],
            "requestBody":{
               "content":{
                  "multipart/form-data":{
                     "schema":{
                        "type":"object",
                        "properties":{
                           "formFile":{
                              "type":"string",
                              "format":"binary"
                           }
                        }
                     },
                     "encoding":{
                        "formFile":{
                           "style":"form"
                        }
                     }
                  }
               }
            },
            "responses":{
               "200":{
                  "description":"successful operation"
               }
            }
         }
      }
   }
}