'Initialize a client with commonly used attributes.'

def __init__(self, client_id, default_redirect_uri=None, token_type=None, access_token=None, refresh_token=None):

    self.client_id = client_id
    self.default_redirect_uri = default_redirect_uri
    self.token_type = token_type
    self.access_token = access_token
    self.refresh_token = refresh_token
    self.token_types = {u'bearer': self._add_bearer_token, u'mac': self._add_mac_token}
