documentation outdated

Dear developer,

I realized that there are more key-value pairs returned from generate_data_training_uniform() than shown in the basic tutorial. These include several fields with the affix "cpn" or "opn" among others. Could you explain what these variables are (and maybe add them to the tutorial)?

Thanks,
HY

Start with generate_data_training_uniform() and the basic tutorial to inventory the returned key-value pairs, especially fields containing cpn or opn. Done means the tutorial or accompanying documentation explains these variables and shows the additional fields requested.

Written by the indexing model from the issue text.