class ErrorConstants:
    class App:
        UNABLE_TO_AUTHENTICATE = 'unable to authenticate'
        UNABLE_TO_AUTHORIZE = 'unauthorized to perform operation'
        REQUESTED_URL_NOT_FOUND = 'the requested url was not found on the server'
        METHOD_NOT_ALLOWED = 'the method is not allowed for the requested url'
        INTERNAL_SERVER_ERROR = 'internal server error'
