text: from flask import Flask
  from flask_restful import Api
  from sequence import FibSequenceResource
  
  errors = {
          "NegativeNumberError": {
              "message": "Must pass a positive number.",
              "status": 400,
              }
          }
  
  app = Flask(__name__)
  
  api = Api(
          app,
          errors = errors
          )
  
  api.add_resource(
          FibSequenceResource,
          "/fib/<string:number>"
          )
  
  if __name__ == "__main__":
      app.run(
              host="0.0.0.0",
              debug=False
              )
  