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: lib.go
    path of file: ./repos/wazero/internal/integration_test/fuzz/wazerolib
    
    the code of the file until where you have to start completion: package main

import (
	"crypto/sha256"
	_ "embed"
	"encoding/hex"
	"fmt"
	"os"
	"path"
)

const failedCasesDir = "wazerolib/testdata"

// saveFailedBinary writes binary and wat into failedCasesDir so that it is easy to reproduce the error.
func saveFailedBinary(bin []byte, reproduceTestName string) {
	checksum := sha256.Sum256(bin)
	checkSumStr := hex.EncodeToString(checksum[:])

	dir, err := os.Getwd()
	if err != nil {
		pani
    
func saveFailedBinary(bin []byte, reproduceTestName string) {
	checksum := sha256.Sum256(bin)
	checkSumStr := hex.EncodeToString(checksum[:])

	dir, err := os.Getwd()
	if err != nil {
		panic(err)
	}

	testDataDir := path.Join(dir, failedCasesDir)
	binaryPath := path.Join(testDataDir, fmt.Sprintf("%s.wasm", checkSumStr))
	f, err := os.Create(binaryPath)
	if err != nil {
		panic(err)
	}

	defer f.Close()

	_, err = f.Write(bin)
	if err != nil {
		panic(err)
	}

	fmt.Printf(`
Failed WebAssembly Binary in hex: %s
Failed Wasm binary has been written to %s
To reproduce the failure, execute: WASM_BINARY_PATH=%s go test -run=%s ./wazerolib/...
`, hex.EncodeToString(bin), binaryPath, binaryPath, reproduceTestName)
}