def METHOD_NAME(plugin_conf):
    conf_path = plugin_conf.get('config_path')
    if not conf_path or not os.path.isfile(conf_path):
        raise SyntaxDataProviderError('Plug-in configuration file [%s] not found. Please check config_path.' %
                                      (conf_path,))
    with open(conf_path, 'rb') as f:
        conf_data = json.load(f)
        return conf_data.get('corpora', {})