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: hash.go
    path of file: ./repos/cosmos-sdk/types/address
    
    the code of the file until where you have to start completion: package address

import (
	"bytes"
	"crypto/sha256"
	"fmt"
	"sort"

	"github.com/cometbft/cometbft/crypto"

	"cosmossdk.io/errors"

	"github.com/cosmos/cosmos-sdk/internal/conv"
)

// Len is the length of b
    
func Module(moduleName string, derivationKeys ...[]byte) []byte {
	mKey := []byte(moduleName)
	if len(derivationKeys) == 0 { // fallback to the "traditional" ModuleAddress
		return crypto.AddressHash(mKey)
	}
	// need to append zero byte to avoid potential clash between the module name and the first
	// derivation key
	mKey = append(mKey, 0)
	addr := Hash("module", append(mKey, derivationKeys[0]...))
	for _, k := range derivationKeys[1:] {
		addr = Derive(addr, k)
	}
	return addr
}