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: key.go
    path of file: ./repos/xorm/vendor/github.com/syndtr/goleveldb/manualtest/dbstress
    
    the code of the file until where you have to start completion: package main

import (
	"encoding/binary"
	"fmt"

	"github.com/syndtr/goleveldb/leveldb/errors"
	"github.com/syndtr/goleveldb/leveldb/storage"
)

type ErrIkeyCorrupted struct {
	Ikey   []byte
	Reason string
}

func (e *ErrIkeyCorrupted) Error() string {
	return fmt.Sprintf("leveldb: iKey %q corrupted: %s", e.Ikey, e.Reason)
}


    
func parseIkey(ik []byte) (ukey []byte, seq uint64, kt kType, err error) {
	if len(ik) < 8 {
		return nil, 0, 0, newErrIkeyCorrupted(ik, "invalid length")
	}
	num := binary.LittleEndian.Uint64(ik[len(ik)-8:])
	seq, kt = uint64(num>>8), kType(num&0xff)
	if kt > ktVal {
		return nil, 0, 0, newErrIkeyCorrupted(ik, "invalid type")
	}
	ukey = ik[:len(ik)-8]
	return
}