Get map value type check

package main

import "fmt"

type Person struct {
    Name    string
    Surname string
    Age     int
}

func GetValueTypeCheck[T any](dict map[string]interface{}, key string) (T, error) {
    var zeroValue T
    valueData, ok := dict[key]

    if !ok {
        return zeroValue, fmt.Errorf(
            "no value for key '%s'", key)
    }

    value, ok := valueData.(T)

    if !ok {
        return zeroValue, fmt.Errorf(
            "wrong value type")
    }

    return value, nil
}

func main() {
    dict := map[string]interface{}{
        "name":   "DB",
        "rating": 15,
        "record": &Person{
            Name:    "Jane",
            Surname: "Doe",
            Age:     32,
        },
    }
    rating, err := GetValueTypeCheck[int](dict, "rating")
    handleError(err)

    fmt.Println(rating)

    name, err := GetValueTypeCheck[string](dict, "name")
    handleError(err)

    fmt.Println(name)

    person, err := GetValueTypeCheck[*Person](dict, "record")
    handleError(err)

    fmt.Println(person.Name)
}

func handleError(err error) {
    if err != nil {
        panic(err)
    }
}