[DotNet] Call async method from C/AL synchronously

Is there any way to call some DotNet async method from C/AL synchronously?

In C# it can be done like this:

Method definition:

public async Task<string> GetDataAsync(string parameter){}

Synchronous call:

string result = somObject.GetDataAsync(parameter).Result;

Unfortunately I can't translate this to C/AL. Property "Result" is not available, and without this part method is called asynchronously. Somehow I need to call this method synchronously, wait until it finishes and grab the result.