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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 meta(cls):
 """Return a dictionary containing meta-information about the given resource."""

        if getattr(cls, '__from_class__', None) is not None:
            cls = cls.__from_class__
        attribute_info = {}
        for name, value in cls.__table__.columns.items():
            attribute_info[name] = str(value.type).lower()

        return {cls.__name__: attribute_info}