Denoppets is a snippet plugin works on denops.vim
call plug#begin()
Plug 'vim-denops/denops.vim'
Plug 'Shougo/ddc.vim'
Plug 'kakubin/denoppets.vim'
Plug 'honza/vim-snippets'
call plug#end()
" ddc
call ddc#custom#patch_global('sources', ['denoppets'])
call ddc#custom#patch_global('sourceOptions', {
\ 'denoppets': {'mark': 'snip'},
\ })
call ddc#enable()
call denoppets#enable()
call denoppets#register_key_map({
\ 'expand': '<C-e>',
\ 'forward': '<C-b>',
\ 'backward': '<C-z>')