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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 fileinfo(self, fid):
 """Ask lain about what he knows about given file. If the given file exists in the file dict, it will get updated."""


        if not isinstance(fid, str):
            raise TypeError("Your file ID must be a string")
        try:
            info = self.conn.make_call_with_cb("getFileinfo", fid).get(timeout=5)
            if not info:
                warnings.warn(
                    f"Your query for file with ID: '{fid}' failed.", RuntimeWarning
                )
            elif fid in self.__files and not self.__files[fid].updated:
                self.__files[fid].fileupdate(info)
        except queue.Empty as ex:
            raise ValueError(
                "lain didn't produce a callback!\n"
                "Are you sure your query wasn't malformed?"
            ) from ex
        return info