             return
         }
 
+        // construct header parameters
+        var headers = defaultHeaders
+        headers["Accept"] = "application/json"
+        headers["Content-Type"] = "application/json"
+
         // construct REST request
         let path = "/v1/classifiers/\(classifierID)/classify"
         guard let encodedPath = path.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) else {

            return
        }

        // construct REST request
        let request = RestRequest(
            method: "POST",
            url: serviceURL + "/v1/classifiers",
            credentials: credentials,
            headerParameters: defaultHeaders,
            acceptType: "application/json",
            contentType: multipartFormData.contentType,
            queryItems: nil,
            messageBody: body
        )


            method: "DELETE",
            url: serviceURL + encodedPath,
            credentials: credentials,
            headerParameters: headers
        )

        // execute REST request
