Hello, I have installed this extension in my VS Code. When I click on the body of some functions, it often highlights almost the whole body as follows, and gives a hint like `type _ = '_a`. Does anyone know what this highlighting mean? And how could I disable this feature? 
Hello,
I have installed this extension in my VS Code.
When I click on the body of some functions, it often highlights almost the whole body as follows, and gives a hint like
type _ = '_a.Does anyone know what this highlighting mean? And how could I disable this feature?