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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_version(cls, settings: Dict[str, Any], path: str) -> Optional[str]: """Generate the version string to be used in static URLs. ``settings`` is the `Application.settings` dictionary and ``path`` is the relative location of the requested asset on the filesystem. The returned value should be a string, or ``None`` if no version could be determined. .. versionchanged:: 3.1 This method was previously recommended for subclasses to override; `get_content_version` is now preferred as it allows the base class to handle caching of the result. """

        abs_path = cls.get_absolute_path(settings["static_path"], path)
        return cls._get_cached_version(abs_path)