The following is code from lldp.py, I am unable to get use of parameters used in methods, please help me.
def __init__ (self, raw=None, prev=None, **kw):
packet_base.__init__(self)
self.prev = prev
self.next = None
self.tlvs = []
if raw is not None:
self.parse(raw)
self._init(kw)
