new_contents: from flask import Blueprint, Flask, jsonify
  
  from flasgger import Swagger
  from flasgger.utils import swag_from
  
  
  app = Flask(__name__)
  
  example_blueprint = Blueprint("example_blueprint", __name__)
  
  
  @example_blueprint.route('/usernames', methods=['GET', 'POST'])
  @swag_from('username_specs.yml', methods=['GET'])
  @swag_from('username_specs.yml', methods=['POST'])
  def usernames(username):
      return jsonify({'username': username})
  
  
  swag = Swagger(app, config={})
  
  if __name__ == "__main__":
      app.run(debug=True)
  
subject: Add example to show failure for #62.