aws_embedded_metrics/sinks/tcp_client.py (2 lines):
	- line 23: # TODO: use non-blocking sockets or asyncore
	- line 54: # TODO: once #21 lands, we should increase the max retries


aws_embedded_metrics/logger/metrics_context.py (2 lines):
	- line 53: # TODO: we should log a warning if the unit has been changed
	- line 66: # TODO add ability to define failure strategy