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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 register_post_processor(func):
 """ Register a post processor function to be run as the final step in serialization. The data passed in will already have gone through the sideloading processor. Usage: @register_post_processor def my_post_processor(data):
 # do stuff with `data` return data """


    global POST_PROCESSORS

    key = func.__name__
    POST_PROCESSORS[key] = func
    return func