How to query server capabilities?

[jclsn]

I would like to overwrite K with :LspHover if the server has this capability and else use the default Vim functionality. How to query this?

I found call lsp#capabilitites#GetClientCaps() for the client side. Not sure how to use lsp#capabilities#ProcessServerCaps() to achieve this.

[jclsn]

Using this workaround now:

function! s:SmartHover() abort                 
    let result = execute('LspHover')           
    if result =~ 'Error'                       
        call feedkeys('K', 'in')               
    endif                                      
endfunction                                    
                                               
nnoremap <silent> K :call <SID>SmartHover()<CR>
``