SimpleUDPClient.send_message -> Type of parameter "value" is partially unknown

[BlackDereker]

The send_message method within the SimpleUDPClient class currently expects a value parameter of type ArgValue. However, the internal logic handles it as both a single argument and a list of arguments, leading to potential confusion and inconsistencies.

Proposed Improvement:

1. Change the type annotation for value to a union:

   def send_message(self, address: str, value: Union[ArgValue, List[ArgValue]]) -> None:

2. Simplify the ArgValue:

   ArgValue = Union[str, bytes, bool, int, float, osc_types.MidiPacket]

Additional Notes:

• This change would enhance code clarity and maintainability by explicitly expressing the intended usage of the value parameter.
• It would also ensure consistent behavior, regardless of whether a single argument or a list of arguments is provided.