Missing LoRaGpio module

[LaySoft]

I tried examples/SX127x/receiver.py, but the LoRaGpio module missing. The I tried to install it:

root@DietPi:/var/www/html/LoraWAN# loraenv/bin/pip install LoRaGpio

but the following errors occured:

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
ERROR: Could not find a version that satisfies the requirement LoRaGpio (from versions: none)
ERROR: No matching distribution found for LoRaGpio

How can I run this receiver.py example?