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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 encoded_content(self, path):
 """Return the base64 encoded contents"""

        if path in self.__class__.asset_contents:
            return self.__class__.asset_contents[path]
        data = self.read_bytes(path)
        self.__class__.asset_contents[path] = force_text(base64.b64encode(data))
        return self.__class__.asset_contents[path]