duplicated block id: 1
size: 8 cleaned lines of code
in 2 files:
 - s2/util.go (29:37)
 - s2/util.go (51:59)

duplicated block id: 2
size: 8 cleaned lines of code
in 2 files:
 - s2/util.go (40:48)
 - s2/util.go (62:70)

duplicated block id: 3
size: 6 cleaned lines of code
in 2 files:
 - s2/encode.go (169:175)
 - s2/encode.go (177:183)