func GetHTLCExpiredQueueKey(expirationHeight uint64, hashLock []byte) []byte {
	return append(append(HTLCExpiredQueueKey, sdk.Uint64ToBigEndian(expirationHeight)...), hashLock...)
}
GetHTLCExpiredQueueKey returns the key for the HTLC expiration queue by the specified height and hash lock
VALUE: []byte{}
package htlc
import (
	sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
	ModuleName = "htlc"
	StoreKey string = ModuleName
	QuerierRoute string = ModuleName
	RouterKey string = ModuleName
)
var (
	HTLCKey             = []byte{0x01}  
	HTLCExpiredQueueKey = []byte{0x02}  
)
func GetHTLCKey(hashLock []byte) []byte {
	return append(HTLCKey, hashLock...)
}