Install using your favorite plugin manager.
Enable ddc-snippy:
vim.fn['ddc#custom#patch_global']('sources', { 'snippy' })
Enable expanding LSP snippets completed by ddc-source-nvim-lsp:
vim.fn['ddc#custom#patch_global']('sourceParams', {
['nvim-lsp'] = {
snippetEngine = vim.fn['denops#callback#register'](function(body)
require('snippy').expand_snippet(body)
end),
}
})