op.go
func Index(index int) OpFunc {
	return func(in []byte) ([]byte, error) {
		return scanner.FindIndex(in, 0, index)
	}
}
func Index(index int) OpFunc {
	return func(in []byte) ([]byte, error) {
		return scanner.FindIndex(in, 0, index)
	}
}
func Index ( index int ) OpFunc { return func ( in [ ] byte ) ( [ ] byte , error ) { return scanner . FindIndex ( in , 0 , index ) } }
// Index extracts a specific element from the array provided
Index extracts a specific element from the array provided