Discussion on version identifier & MockDataLoaderManager for test data
> Maybe use the YYYY.MM.DD as the config name ? That's what we are doing for wikipedia

I'm not sure if this will work because the name should be unique and it seems that he has multiple config name in his data with the same version.
As @patrickvonplaten  suggested, I think  you can add a comment about the version in the data description.
Hi, I'm working on adding a dataset and ran into an error due to `download` not being defined on `MockDataLoaderManager`, but being defined in `nlp/utils/download_manager.py`. The readme step running this: `RUN_SLOW=1 pytest tests/test_dataset_common.py::DatasetTest::test_load_real_dataset_localmydatasetname` triggers the error. If I can get something to work, I can include it in my data PR once I'm done.
Discussion on version identifier & MockDataLoaderManager for test data 
 Hi, I'm working on adding a dataset and ran into an error due to `download` not being defined on `MockDataLoaderManager`, but being defined in `nlp/utils/download_manager.py`. The readme step running this: `RUN_SLOW=1 pytest tests/test_dataset_common.py::DatasetTest::test_load_real_dataset_localmydatasetname` triggers the error. If I can get something to work, I can include it in my data PR once I'm done. 
 > Maybe use the YYYY.MM.DD as the config name ? That's what we are doing for wikipedia

I'm not sure if this will work because the name should be unique and it seems that he has multiple config name in his data with the same version.
As @patrickvonplaten  suggested, I think  you can add a comment about the version in the data description.