func (l *List) AddAt(pos uint, entries ...interface{}) {
	l.key.Lock()
	defer l.key.Unlock()

	l.underlyer = append(l.underlyer[:pos], append(entries, l.underlyer[pos:]...)...)
}
func (l *List) AddAt(pos uint, entries ...interface{}) {
	l.key.Lock()
	defer l.key.Unlock()

	l.underlyer = append(l.underlyer[:pos], append(entries, l.underlyer[pos:]...)...)
}
func ( l * List ) AddAt ( pos uint , entries ... interface { } ) { l . key . Lock ( ) defer l . key . Unlock ( ) l . underlyer = append ( l . underlyer [ : pos ] , append ( entries , l . underlyer [ pos : ] ... ) ... ) }
// AddAt injects values beginning at `pos`. If multiple values
// are provided in `entries` they are placed in the same order
// they are provided.
AddAt injects values beginning at pos . If multiple values are provided in entries they are placed in the same order they are provided .