a requestMessage call with incorrect signagure

[haolian9]

How are you using the lua-language-server?

NeoVim

Which OS are you using?

Linux

What is the issue affecting?

Other

Expected Behaviour

nil

Actual Behaviour

nil

Reproduction steps

relevant code can be found here

titles should be string[], but {}[]was given.

Additional Notes

No response

Log File

No response

[haolian9]

though i am not sure {lang.script} if is {}[] (an array of dict) in servser side, i just see response data's structure in nvim.lsp['window/showMessageRequest'] handler.