  
      - parameter url: The URL of the image (.jpg, .png, or .gif). Redirects are followed, so it
             is safe to use with URL shorteners. The resolved URL is returned in the response.
+     - parameter owners: A list with IBM and/or "me" to specify which classifiers to run.
      - parameter classifierIDs: A list of the ids for the classifiers to use. "default" is the id
             of the built-in classifier.
-     - parameter owners: A list with IBM and/or "me" to specify which classifiers to run.
      - parameter showLowConfidence: If true, then the results will include lower-confidence classes.
      - parameter outputLanguage: The language of the output classifier (i.e. tag names). Can be
             "en" (English), "es" (Spanish), "ar" (Arabic), or "ja" (Japanese). Tags for which

     */
    public func classify(
        image: URL,
        usingClassifierID classifierIDs: [String]? = nil,
        fromOwners owners: [String]? = nil,
        showLowConfidence: Bool? = nil,
        outputLanguage: String? = nil,
        failure: ((Error) -> Void)? = nil,

    public func createClassifier(
        withName name: String,
        fromPositiveExamples positiveExamples: [Class],
        fromNegativeExamples negativeExamples: URL? = nil,
        failure: ((Error) -> Void)? = nil,
        success: @escaping (Classifier) -> Void)
    {
