dpr/data/biencoder_data.py (5 lines):
	- line 490: if len(row_lin) > 1:  # TODO: change to checking cell value tokens
	- line 502: if len(row_lin) > 1:  # TODO: change to checking cell value tokens
	- line 526: if len(row_lin) > 1:  # TODO: change to checking cell value tokens
	- line 557: if len(row_lin) > 1:  # TODO: change to checking cell value tokens
	- line 584: # TODO: support other types


dpr/models/biencoder.py (4 lines):
	- line 41: # TODO: it is only used by _select_span_with_token. Move them to utils
	- line 141: # TODO delete once moved to the new method
	- line 314: # TODO: tmp workaround for EL, remove or revise
	- line 340: # TODO: make a long term HF compatibility fix


dpr/utils/data_utils.py (3 lines):
	- line 125: # TODO: merge with iterate_ds_sampled_data
	- line 163: # TODO: reset the iteration status?
	- line 255: # TODO: clear iterators in some non-hacky way


dense_retriever.py (2 lines):
	- line 62: # TODO: tmp workaround for EL, remove or revise
	- line 300: # TODO: long term HF state compatibility fix


dpr/models/hf_models.py (2 lines):
	- line 109: # TODO: this is a hack-y logic that uses some private tokenizer structure which can be changed in HF code
	- line 240: # TODO: move max len to methods params?


train_dense_encoder.py (2 lines):
	- line 174: # TODO: ideally we'd want to just call
	- line 586: # TODO: offset doesn't work for multiset currently


conf/biencoder_train_cfg.yaml (1 line):
	- line 25: # TODO: move to a conf group


dpr/data/reader_data.py (1 line):
	- line 173: # TODO: check if pytorch process group is initialized


dpr/models/reader.py (1 line):
	- line 52: # TODO: provide segment values


conf/extractive_reader_train_cfg.yaml (1 line):
	- line 58: # TODO: move to a conf group


conf/dense_retriever.yaml (1 line):
	- line 59: # TODO: move to a conf group


generate_dense_embeddings.py (1 line):
	- line 73: # TODO: refactor to avoid 'if'


dpr/data/download_data.py (1 line):
	- line 23: # TODO: move to hydra config group


conf/gen_embs.yaml (1 line):
	- line 40: # TODO: move to a conf group


dpr/options.py (1 line):
	- line 24: # TODO: to be merged with conf_utils.py


train_extractive_reader.py (1 line):
	- line 487: # TODO: remove?