require("mason").setup {ui = {icons = {package_installed = "✓"}}}
require("mason-lspconfig").setup {ensure_installed = {"sumneko_lua"}}
-- Dynamic loading of lsp servers
require("mason-lspconfig").setup_handlers {
    -- The first entry (without a key) will be the default handler
    -- and will be called for each installed server that doesn't have
    -- a dedicated handler.
    function(server_name) -- default handler (optional)
        require("lspconfig")[server_name].setup {}
    end,
    -- Next, you can provide targeted overrides for specific servers.
    -- For example, a handler override for the `rust_analyzer`:
    ["rust_analyzer"] = function() require("rust-tools").setup {} end
}