Issue #3495523 by hamzadwaya: Fix Name of function on drush command

src/Drush/ClassesExtractorCommands.php

@@ -15,7 +15,7 @@ class ClassesExtractorCommands extends DrushCommands {
    * @command class_extractor:create
    * @aliases cec
    */
-  public function createFile() {
+  public function ExtractClasses() {
     $config = \Drupal::config('classes_extractor.configform');
     $classes_extractor_manager = \Drupal::service('classes_extractor.manager');
     $classes = $classes_extractor_manager->getAllClasses();