You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: compress.go
    path of file: ./repos/mongo-go-driver/vendor/github.com/klauspost/compress/fse
    
    the code of the file until where you have to start completion: // Copyright 2018 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Based on work Co
    
func (s *Scratch) validateNorm() (err error) {
	var total int
	for _, v := range s.norm[:s.symbolLen] {
		if v >= 0 {
			total += int(v)
		} else {
			total -= int(v)
		}
	}
	defer func() {
		if err == nil {
			return
		}
		fmt.Printf("selected TableLog: %d, Symbol length: %d\n", s.actualTableLog, s.symbolLen)
		for i, v := range s.norm[:s.symbolLen] {
			fmt.Printf("%3d: %5d -> %4d \n", i, s.count[i], v)
		}
	}()
	if total != (1 << s.actualTableLog) {
		return fmt.Errorf("warning: Total == %d != %d", total, 1<<s.actualTableLog)
	}
	for i, v := range s.count[s.symbolLen:] {
		if v != 0 {
			return fmt.Errorf("warning: Found symbol out of range, %d after cut", i)
		}
	}
	return nil
}