How to determine variable type in Go: methods and examples

Hello everyone! I just started learning Go and ran into a problem. In other languages, like Python or JavaScript, I can easily find out the type of a variable using type() or typeof. But in Go, I can't find a simple way to do this. Here's an example that confuses me: ```go package main import "fmt" func main() { var x interface{} x = 42 // How can I find out that x is an int? fmt.Println(x) // Just prints 42 } ``` I understand that Go is a statically typed language, and types are usually known at compile time. But what should I do if I'm working with an empty interface (interface{}) or with data from JSON? For example, I receive a response from an API that may contain different data types: strings, numbers, boolean values. How can I programmatically determine which type is stored?