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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 reducing(reducer, init=UNSET):
 """Create a reducing transducer with the given reducer. Args: reducer: A two-argument function which will be used to combine the partial cumulative result in the first argument with the next item from the input stream in the second argument. Returns: A reducing transducer: A single argument function which, when passed a reducing function, returns a new reducing function which entirely reduces the input stream using 'reducer' before passing the result to the reducing function passed to the transducer. """


    reducer2 = reducer

    def reducing_transducer(reducer):
        return Reducing(reducer, reducer2, init)

    return reducing_transducer