datawig/imputer.py (3 lines):
	- line 129: # TODO: check whether encoder type matches requirements of featurizer
	- line 192: TODO: more data quality checks; note that in order to avoid unneccessary passes through
	- line 679: # FIXME: truncation to [:mxnet_iter.start_padding_idx] because of having to set last_batch_handle to discard.


datawig/simple_imputer.py (1 line):
	- line 489: # TODO: should we expose temporary dir for model serialization to avoid crashes due to not-writable dirs?


datawig-js/templates/datawig.html (1 line):
	- line 89: // TODO: on_finish for each batch, or as part of async cb, update