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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 getmtime(self, path):
 """Returns the modification time of the fake file. Args: path: the path to fake file. Returns: (int, float) the modification time of the fake file in number of seconds since the epoch. Raises: OSError: if the file does not exist. """

        try:
            file_obj = self.filesystem.resolve(path)
            return file_obj.st_mtime
        except IOError:
            self.filesystem.raise_os_error(errno.ENOENT, winerror=3)