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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 check_file_paths(self, *args):
 """ Ensure all arguments provided correspond to a file """

        for path in enumerate(args):
            path = path[1]
            if path is not None:
                try:
                    self.check_file_path(path)
                except OSError as ex:
                    logger.warn(ex)
                    raise
        return args