'Get information about an episode
parameters:
eid    - episode id
aid    - anime id
aname    - name of the anime
epno    - number of the episode
structure of parameters:
eid
(aid|aname) epno'

def episode(self, eid=None, aid=None, aname=None, epno=None, callback=None):

    return self.handle(EpisodeCommand(eid, aid, aname, epno), callback)
