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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 close(self):
 """Closes associated resources of this request object. This closes all file handles explicitly. You can also use the request object in a with statement which will automatically close it. .. versionadded:: 0.9 """

        files = self.__dict__.get("files")
        for _key, value in iter_multi_items(files or ()):
            value.close()