def GetHomeTimeline(self,
                         user=None,
                         count=None,
                         since=None, 
                         since_id=None):
    '''Fetch the sequence of twitter.Status messages for a user's friends

    The twitter.Api instance must be authenticated if the user is private.

    Args:
      user:
        Specifies the ID or screen name of the user for whom to return
        the friends_timeline.  If unspecified, the username and password
        must be set in the twitter.Api instance.  [Optional]
      count: 
        Specifies the number of statuses to retrieve. May not be
        greater than 200. [Optional]
      since:
        Narrows the returned results to just those statuses created
        after the specified HTTP-formatted date. [Optional]
      since_id:
        Returns only public statuses with an ID greater than (that is,
        more recent than) the specified ID. [Optional]

    Returns:
      A sequence of twitter.Status instances, one for each message
    '''
    if user:
      url = TWITTER_API_ROOT + 'statuses/home_timeline/%s.json' % user
    elif not user and not self._username:
      raise TwitterError("User must be specified if API is not authenticated.")
    else:
      url = TWITTER_API_ROOT + 'statuses/friends_timeline.json'
    parameters = {}
    if count is not None:
      try:
        if int(count) > 200:
          raise TwitterError("'count' may not be greater than 200")
      except ValueError:
        raise TwitterError("'count' must be an integer")
      parameters['count'] = count
    if since:
      parameters['since'] = since
    if since_id:
      parameters['since_id'] = since_id
    json = self._FetchUrl(url, parameters=parameters)
    data = simplejson.loads(json)
    self._CheckForTwitterError(data)
    return [Status.NewFromJsonDict(x) for x in data]
Fetch the sequence of twitter.Status messages for a user's friends

    The twitter.Api instance must be authenticated if the user is private.

    Args:
      user:
        Specifies the ID or screen name of the user for whom to return
        the friends_timeline.  If unspecified, the username and password
        must be set in the twitter.Api instance.  [Optional]
      count: 
        Specifies the number of statuses to retrieve. May not be
        greater than 200. [Optional]
      since:
        Narrows the returned results to just those statuses created
        after the specified HTTP-formatted date. [Optional]
      since_id:
        Returns only public statuses with an ID greater than (that is,
        more recent than) the specified ID. [Optional]

    Returns:
      A sequence of twitter.Status instances, one for each message
    
twitter/twitter.py