Easier way to use void function in Linq

Below example, I use fun() to wrap WriteLine function. But it’s a little bit redundant … Is any easier way to use void function in Linq ？

public Subsystem<string> Upgrade(string path) =>
    from fileinfo in TryGetFileInfo(path)
    let _ = fun(() => Console.WriteLine($"File {fileinfo.Fullname} size is {fileinfo.length} byte."))()
    from content  in ReadFile(fileinfo)
    select content;

[louthy]

At a computer now, so this will work:

   fun<string>(Console.WriteLine)("Hello");

Unfortunately, you do need to provide the generic parameter.

[gwintering]

We can slightly improve the syntax from

let _ = fun(() => Console.WriteLine("info"))()

to

let _ = ignore(() => Console.WriteLine("info"))

with this additional ignore method

public static Unit ignore(Action action)
{
    action();
    return unit;
}