Is it possible to wrap an arbitrary code fragment in curly braces without restrictions?

In Go, curly braces {} are used to define code blocks, such as function bodies, loops, conditions, etc. Wrapping an arbitrary code fragment in curly braces is possible, but with some restrictions:

• The code block must be syntactically correct within the context where it is used.
• Outside of functions, you cannot simply write blocks with curly braces.
• Inside functions, you can create nested blocks to limit the scope of variables.

Example:

func example() {
    x := 10
    {
        y := 20
        fmt.Println(x, y) // y is only accessible within this block
    }
    // fmt.Println(y) // error: y is not defined here
}

Thus, curly braces create a new block and scope, but they should be used within the language's syntax.