(self, headers, flows, exit, nopop)
headers: Case-insensitive list of request headers that should be
            included in request-response matching.
headers: Case-insensitive list of request headers that should be
            included in request-response matching.
headers : Case - insensitive list of request headers that should be included in request - response matching .
def __init__(self, headers, flows, exit, nopop):
        """
            headers: Case-insensitive list of request headers that should be
            included in request-response matching.
        """
        self.headers, self.exit, self.nopop = headers, exit, nopop
        self.fmap = {}
        for i in flows:
            if i.response:
                l = self.fmap.setdefault(self._hash(i), [])
                l.append(i)
def __init__ ( self , headers , flows , exit , nopop ) : self . headers , self . exit , self . nopop = headers , exit , nopop self . fmap = { } for i in flows : if i . response : l = self . fmap . setdefault ( self . _hash ( i ) , [ ] ) l . append ( i )