'Updates an existing classifier by adding images to existing or new
classes.
:param classifier_id: The id of the classifier to update.
:param <NAME>_positive_examples: zip files of images that depict the
subject of the class.
:param negative_examples: A zip file of images that do not depict the
subject of any of the classes.
:return:'

def update_classifier(self, classifier_id, **kwargs):

    params = {'version': self.version}
    return self.request(method='POST', url='/v3/classifiers/{0}'.format(classifier_id), files=kwargs, params=params, accept_json=True)
