i_CTRL-E remapping conflicts with insert completion

coc has a custom popup window now and use coc#pum#visible() check whether insert completion is visible.

maybe vim-rsi should give user a function to customize i_CTRL-E and c_CTRL-Y, like

let pumvisible_func = get(g:, 'pumvisible_func', 'pumvisible')

inoremap <expr> <C-E> col('.')>strlen(getline('.'))<bar><bar>pumvisible_func()?"\<Lt>C-E>":"\<Lt>End>"

any suggestions will be appreciated

tpope / vim-rsi

i_CTRL-E remapping conflicts with insert completion #56