DiskFileItem.new DeferrableOutputStream.Listener() {...}

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	6 of 22	72%	1 of 2	50%	1	3	1	6	0	2
persisted(Path)		62%		50%	1	2	1	5	0	1
{...}		100%		n/a	0	1	0	1	0	1