trl/trainer/utils.py (1 line):
	- line 549: padding_value = 0  # TODO: check if this is correct


trl/environment/base_environment.py (1 line):
	- line 301: # TODO: make this parallel rather than for-loop


trl/trainer/grpo_trainer.py (1 line):
	- line 938: # TODO: does this work with FSDP?


trl/models/utils.py (1 line):
	- line 40: # TODO: Add Abstract Base Class if more formats are added


trl/scripts/sft.py (1 line):
	- line 109: # TODO: source should be passed as an argument