Added file_unique_id attrs from API 4.5 and updated tests for it#1695

Merged

Bibo-Joshi merged 3 commits intopython-telegram-bot:nested-entitiesfrom

dmytrohoi:nested-entities

Jan 8, 2020

Commits on Jan 6, 2020

Added file_unique_id attrs from API 4.5 and updated tests for it
dmytrohoi
committed

Commits on Jan 7, 2020

Fixed test and checked using flake8
dmytrohoi
committed

Commits on Jan 8, 2020

Fixed ChatPhoto documentation
dmytrohoi
authored