Logger is doubling its outputs when notebook cells are re-run

Issue: Logger outputs are doubling when running LMI interactively and it's polluting the notebooks.

Expected behavior: Logging outputs are not appearing multiple times.

Actual behavior: Example from training:

[2021-10-18 11:23:30][INFO ][indexes.BaseIndex] Training model M.0 (root) on dataset(1000000, 284) with {'model': 'GMM', 'n_components': 30, 'covariance_type': 'diag', 'max_iter': 20, 'init_params': 'kmeans'}.
[2021-10-18 11:23:30][INFO ][indexes.BaseIndex] Training model M.0 (root) on dataset(1000000, 284) with {'model': 'GMM', 'n_components': 30, 'covariance_type': 'diag', 'max_iter': 20, 'init_params': 'kmeans'}.