paid_media_vars are not being used to train the model

[Minhanh0908]

According to the documentation (https://cran.r-project.org/web/packages/Robyn/Robyn.pdf). paid_media_vars are not used for model training — they are exposure-level metrics (e.g. impressions, clicks, GRPs) used to check media relationship quality and support recommendations for sub-channel splits.

However, after running robyn_inputs() and robyn_run(), I noticed that the transformed media variables in dt_mod or model_output are named after the paid_media_vars. So what are the true inputs to the model, I'm really confused please help me.