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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 get_inheritors(cls):
 """Get a set of all classes that inherit from the given class."""

    subclasses = set()
    work = [cls]
    while work:
        parent = work.pop()
        for child in parent.__subclasses__():
            if child not in subclasses:
                subclasses.add(child)
                work.append(child)
    return subclasses