func (id ObjectId) byteSlice(start, end int) []byte {
	if len(id) != 12 {
		panic(fmt.Sprintf("Invalid ObjectId: %q", string(id)))
	}
	return []byte(string(id)[start:end])
}
func (id ObjectId) byteSlice(start, end int) []byte {
	if len(id) != 12 {
		panic(fmt.Sprintf("Invalid ObjectId: %q", string(id)))
	}
	return []byte(string(id)[start:end])
}
func ( id ObjectId ) byteSlice ( start , end int ) [ ] byte { if len ( id ) != 12 { panic ( fmt . Sprintf ( " " , string ( id ) ) ) } return [ ] byte ( string ( id ) [ start : end ] ) }
// byteSlice returns byte slice of id from start to end.
// Calling this function with an invalid id will cause a runtime panic.
byteSlice returns byte slice of id from start to end . Calling this function with an invalid id will cause a runtime panic .