Mypy Type Check Coverage Summary

Summary from index
File	Imprecision	Lines
Total	1.80% imprecise	444 LOC
tubthumper	0.00% imprecise	6 LOC
tubthumper._interfaces	0.00% imprecise	231 LOC
tubthumper._retry_factory	3.68% imprecise	163 LOC
tubthumper._types	4.55% imprecise	44 LOC