How to use the azure-storage-queue.azure.storage.queue.models.QueuePermissions function in azure-storage-queue

self.process = process or ('p' in _str)

    def __or__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('u' if self.update else '') +
                ('p' if self.process else ''))


QueuePermissions.READ = QueuePermissions(read=True)
QueuePermissions.ADD = QueuePermissions(add=True)
QueuePermissions.UPDATE = QueuePermissions(update=True)
QueuePermissions.PROCESS = QueuePermissions(process=True)

def __or__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('u' if self.update else '') +
                ('p' if self.process else ''))


QueuePermissions.READ = QueuePermissions(read=True)
QueuePermissions.ADD = QueuePermissions(add=True)
QueuePermissions.UPDATE = QueuePermissions(update=True)
QueuePermissions.PROCESS = QueuePermissions(process=True)

return QueuePermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('u' if self.update else '') +
                ('p' if self.process else ''))


QueuePermissions.READ = QueuePermissions(read=True)
QueuePermissions.ADD = QueuePermissions(add=True)
QueuePermissions.UPDATE = QueuePermissions(update=True)
QueuePermissions.PROCESS = QueuePermissions(process=True)

def __or__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return QueuePermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('u' if self.update else '') +
                ('p' if self.process else ''))


QueuePermissions.READ = QueuePermissions(read=True)
QueuePermissions.ADD = QueuePermissions(add=True)
QueuePermissions.UPDATE = QueuePermissions(update=True)
QueuePermissions.PROCESS = QueuePermissions(process=True)

def __or__(self, other):
        return QueuePermissions(_str=str(self) + str(other))