\x89\x50\x4E\x47\x0D\x0A\x1A\x0A
 PNG

\x89\x50\x4E\x47\x0D\x0A\x1A\x0A
#
# subpath mappings from mount point for pinning
#
#3	tracing
#4	foo/bar
#5	tc/cls1