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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 remove(self):
 """ Remove the ndata file reference :param reference: the reference to remove """

        with self.__lock:
            absolute_file_path = self.__file_path
            #logging.debug("DELETE data file %s", absolute_file_path)
            if os.path.isfile(absolute_file_path):
                os.remove(absolute_file_path)