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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def onStart(self, event):
 """ Display the environment of a started container """

        c = event.container
        print '+' * 5, 'started:', c
        kv = lambda s: s.split('=', 1)
        env = {k: v for (k, v) in (kv(s) for s in c.attrs['Config']['Env'])}
        print env