[Python] How to Install python-telegram-bot version 20 and above

Trying to run examples or telegram bots from official site - https://github.com/python-telegram-bot/python-telegram-bot/tree/master/examples Installed :

pip install python-telegram-bot


and when i run the example, i got error back that version is not compatible.

if __version_info__ < (20, 0, 0, "alpha", 1):
raise RuntimeError(
f"This example is not compatible with your current PTB version {TG_VER}. To view the "
f"{TG_VER} version of this example, "
f"visit https://github.com/python-telegram-bot/python-telegram-bot/tree/v{TG_VER}/examples"
)


It installs PyPi version 13.12 but example checks different version v20. So, the error is reasonable. How can I let example working?

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