Telethon/DEVELOPING.md

Code generation:

pip install -e generator/
python tools/codegen.py

Formatting, type-checking and testing:

pip install -e client/[dev]
python tools/check.py

Documentation (requires sphinx and graphviz's dot):

pip install -e client/[doc]
python tools/docgen.py

Note that multiple optional dependency sets can be specified by separating them with a comma ([dev,doc]).