text: from .oauth1_auth import OAuth1
  from .oauth1_session import OAuth1Session
  from .oauth2_auth import OAuth2
  from .oauth2_session import OAuth2Session, TokenUpdated
  
  __version__ = '0.8.0'
  
  import requests
  if requests.__version__ < '2.0.0':
      msg = ('You are using requests version %s, which is older than '
             'requests-oauthlib expects, please upgrade to 2.0.0 or later.')
      raise Warning(msg % requests.__version__)
  
  import logging
  try:  # Python 2.7+
      from logging import NullHandler
  except ImportError:
     class NullHandler(logging.Handler):
         def emit(self, record):
             pass
  
  logging.getLogger('requests_oauthlib').addHandler(NullHandler())
  