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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 insert_file(self, f, namespace, timestamp):
 """Inserts a file to the doc dict. """

        doc = f.get_metadata()
        doc["content"] = f.read()
        self.doc_dict[f._id] = Entry(doc=doc, ns=namespace, ts=timestamp)