old_contents: from .user import User
  from .api import API
  from .bot import Bot
  
  assert User  # silence pyflakes
  assert API  # silence pyflakes
  assert Bot  # silence pyflakes
  
new_contents: from .user import User
  from .api import API
  from .bot import Bot
  from .parser import Parser
  
  assert User  # silence pyflakes
  assert API  # silence pyflakes
  assert Bot  # silence pyflakes
  assert Parser
  
subject: add Parser to package init