How to structure the entry and exit parameters for a method，Help！

[witsaint]

When you write code Vscode will ask you what is the property of a certain variable，Or the mouse hover will see the corresponding class，cmd + click to goToDefintion，So, can I parse a method under a class file, and know the input and input parameters of this method, if it is a basic type, such as List, I can parse it as a Json Schema like
{
type: 'array',
item: 'string'
}
If the source is pkg，The object is further parsed