modified:   samples/processing_app/topics/advanced_data/load_save_json.rb
	modified:   samples/processing_app/topics/advanced_data/load_save_struct_yaml.rb
	modified:   samples/processing_app/topics/advanced_data/load_save_table.rb
	modified:   samples/processing_app/topics/advanced_data/load_save_yaml.rb
Some refactoring to use Enumerable etc.