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: 385. Mini Parser.go
    path of file: ./repos/LeetCode-Go/leetcode/0385.Mini-Parser
    
    the code of the file until where you have to start completion: package leetcode

import (
	"fmt"
	"strconv"
)

/**
 * // This is the interface that allows for creating nested lists.
 * // You should not implement it, or speculate about its implementation
 * type NestedInteger struct {
 * }
 *
 * // Return true if this NestedInteger holds a single integer, rather than a nested list.
 * func (n NestedInteger) IsInteger() bool {}
 *
 * // Return the single integer that this NestedInteger holds, if it holds a single integer
 * // The result is undefined if this NestedInteger holds a nested list
 * // So before calling this method, you should have a check
 * func (n NestedInteger) GetInteger() int {}
 *
 * //
    
func deserialize(s string) *NestedInteger {
	stack, cur := []*NestedInteger{}, &NestedInteger{}
	for i := 0; i < len(s); {
		switch {
		case isDigital(s[i]) || s[i] == '-':
			j := 0
			for j = i + 1; j < len(s) && isDigital(s[j]); j++ {
			}
			num, _ := strconv.Atoi(s[i:j])
			next := &NestedInteger{}
			next.SetInteger(num)
			if len(stack) > 0 {
				stack[len(stack)-1].List = append(stack[len(stack)-1].GetList(), next)
			} else {
				cur = next
			}
			i = j
		case s[i] == '[':
			next := &NestedInteger{}
			if len(stack) > 0 {
				stack[len(stack)-1].List = append(stack[len(stack)-1].GetList(), next)
			}
			stack = append(stack, next)
			i++
		case s[i] == ']':
			cur = stack[len(stack)-1]
			stack = stack[:len(stack)-1]
			i++
		case s[i] == ',':
			i++
		}
	}
	return cur
}