Contributing.md doesn't doesn't appear to contain any actual guidlines, and the link only leads back to the same document: Java/CONTRIBUTING.md.

golangci-lint run --no-config searches

##[error]searches/binary_search.go:20:6: `iterBinarySearch` is unused (deadcode)
func iterBinarySearch(array []int, target int, lowIndex int, highIndex int) int {
     ^
##[error]searches/binary_search.go:6:6: func `binarySearch` is unused (unused)
func binarySearch(array []int, target int, lowIndex int, highIndex int) int {
     ^

Line coverage only decreased in build folder, not in source code, but the current remapping configuration does not account for that. Reason is that TypeScript's _assign stub is only used partly.