How to perform 'Async Replace Substring' in VisualBasic.
' Task: Async Replace Substring
' Language: VisualBasic
Sub async_replace_substring()
' Implementation for Async Replace Substring
Dim result = ...; ' Initialize variable
' TODO: Implement core logic here
' Step 1: Prepare data
' Step 2: Process Async Replace Substring
Console.WriteLine("Done");
End Sub