PEP8 for import order and line length.
Type hints everywhere.
Since query is only fed into _build_url and _build_headers, removed the if query is None, since that's dealt with in the calling code.
Validated chain argument of get_deposit_address.
Replaced all limit arg defaults with a configured constant.
Added requirements.txt.
Added rate limiting.
PEP8 for import order and line length. Type hints everywhere. Since
queryis only fed into_build_urland_build_headers, removed theif query is None, since that's dealt with in the calling code. Validatedchainargument ofget_deposit_address. Replaced alllimitarg defaults with a configured constant. Added requirements.txt. Added rate limiting.fixes #4 fixes #6