             return
         }
 
+        // construct header parameters
+        var headers = defaultHeaders
+        headers["Accept"] = "text/csv"
+        headers["Content-Type"] = "text/html"
+        if let contentLanguage = contentLanguage {
+            headers["Content-Language"] = contentLanguage
+        }
+        if let acceptLanguage = acceptLanguage {
+            headers["Accept-Language"] = acceptLanguage
+        }
+
         // construct query parameters
         var queryParameters = [URLQueryItem]()
         queryParameters.append(URLQueryItem(name: "version", value: version))

            return
        }

        // construct query parameters
        var queryParameters = [URLQueryItem]()
        queryParameters.append(URLQueryItem(name: "version", value: version))

            method: "POST",
            url: serviceURL + "/v3/profile",
            credentials: credentials,
            headerParameters: headers,
            queryItems: queryParameters,
            messageBody: body
        )
