title: Usage hints for C# in Visual Studio
body: <p>What is the source of these usage hints for methods in Visual Studio? I can not figure out where these originate?!</p>
  
  <p><a href="https://i.stack.imgur.com/1DxkH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1DxkH.png" alt="enter image description here"></a></p>