@staticmethod<EOL><INDENT>def _getModelExtraDataDir(saveModelDir):<DEDENT>
path = os.path.join(saveModelDir, "<STR_LIT>")<EOL>path = os.path.abspath(path)<EOL>return path<EOL>
Return the absolute path to the directory where the model's own
        "extra data" are stored (i.e., data that's too big for pickling).

        :param saveModelDir: (string)
               Directory of where the experiment is to be or was saved
        :returns: (string) An absolute path.