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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 compose(*validators):
 """ Implement composition of validators. For instance """

    def composed_validator(value):
        out = value
        for validator in reversed(validators):
            out = validator(out)
        return out
    composed_validator.__name__ = 'compose(%s)' % ','.join(
        val.__name__ for val in validators)
    return composed_validator