neovim/lua/lsp/lua.lua

-- setting up lua
local runtime_path = vim.split(package.path, ";")
table.insert(runtime_path, "lua/?.lua")
table.insert(runtime_path, "lua/?/init.lua")

require("lspconfig").lua_ls.setup({
    settings = {
        Lua = {
            runtime = {
                -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
                version = "LuaJIT",
                path = runtime_path,
            },
            diagnostics = {
                -- Get the language server to recognize the `vim` global
                globals = { "vim" },
            },
            workspace = {
                -- Make the server aware of Neovim runtime files
                library = vim.api.nvim_get_runtime_file("", true),
                checkThirdParty = false,
            },
            -- Do not send telemetry data containing a randomized but unique identifier
            telemetry = {
                enable = false,
            },
        },
    },
})