How to run vim.ui.select synchronously?

[FoamScience]

The idea is to use it in configuration files

Something along these lines:

dap.configurations.cpp = {
 {
    program = function()
        local var = ""
        vim.ui.select({'main', 'bin'}, {prompt = 'Choose binary:'}, function(choice) var = choice end)
        return var
    end,
...}

But by the time the configuration is read, it appears vim.ui.select is executed asynchronously (and program is nil) but I need the function to block
and wait for the selection.

I'm new to the whole Lua thing, so I thought I would ask if there is a simple way to do this?

[FoamScience]

Found a piece of code demonstrating this here in dap.ui

[rohit-kumar-j]

After searching for soooo.. long

Thanks @FoamScience!!

Here is what I am doing with this: Multit Terminal Support with CMakeTools