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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 cheer(rest):
	"Cheer for something"
	if rest:
		karma.Karma.store.change(rest, 1)
		return "/me cheers for %s!" % rest
	karma.Karma.store.change('the day', 1)
	return "/me cheers!"