Multiple returns in the normal way

[forrestbao]

When a function has multiple returns, the normal way is to return them as tuples, implicitly or explicitly. For example,

def hello_world(your_name: str) -> (str, int):
    return f"Welcome to Funix, {your_name}.", len(your_name) 

Previously, Funix requires the multiple returns to be packed into a typedDict. This is very inconvenient as Funix users will have to define the typedDict first, increasing the amount of code to write. This is against the philosophy of Funix which is to reduce the amount of manual work.

Hence, please automatically handle multiple returns as tuples. Find the proper widgets based on their types.

[Yazawazi]

Done in https://github.com/TexteaInc/funix/commit/f4832960d63a0a8c79b7ec2b9d7f67217c0d144e

I have used type hint for additional type extensions and now support more in the return type：

• Markdown
• HTML
• Internet media resources (images, videos, audios)
• Internet files
• Code for preview

Python base types and Figure are also included.

In the future:

• Local media resources and files
• Refactoring FunctionPreview for better support of layout
• Remove parse_type