refactor: add comments & update type anotation

lua/gopher/_utils/ts/init.lua

···
   }
 end
 
----@param row any
----@param col any
----@param bufnr any
+---@param row string
+---@param col string
+---@param bufnr string
 ---@return table|nil
 function M.get_struct_node_at_pos(row, col, bufnr)
   local query = M.querys.struct_block .. " " .. M.querys.em_struct_block
···
   end
 end
 
+---@param row string
+---@param col string
+---@param bufnr string
+---@return table|nil
 function M.get_func_method_node_at_pos(row, col, bufnr)
   local query = M.querys.func .. " " .. M.querys.method_name
   local bufn = bufnr or vim.api.nvim_get_current_buf()

lua/gopher/gogenerate.lua

···
 local Job = require "plenary.job"
 
+---run "go generate"
 return function(...)
   local args = { ... }
   if #args == 1 and args[1] == "%" then

lua/gopher/goget.lua

···
 local Job = require "plenary.job"
 
+---run "go get"
 return function(...)
   local args = { ... }
   for i, arg in ipairs(args) do

lua/gopher/gomod.lua

···
 local Job = require "plenary.job"
 
+---run "go mod"
 return function(...)
   local args = { ... }
   local cmd_args = vim.list_extend({ "mod" }, args)

lua/gopher/gotests.lua

···
   add_test(cmd_args)
 end
 
+---generate unit tests for all functions in current file
+---@param parallel boolean
 function M.all_tests(parallel)
   local cmd_args = { "-all" }
   if parallel then

lua/gopher/impl.lua

···
 local Job = require "plenary.job"
 local ts_utils = require "gopher._utils.ts"
 
+---@return string
 local function get_struct()
   local ns = ts_utils.get_struct_node_at_pos(unpack(vim.api.nvim_win_get_cursor(0)))
   if ns == nil then
···
   local pos = vim.fn.getcurpos()[2]
   table.insert(res_data, 1, "")
   vim.fn.append(pos, res_data)
-
-  -- table.insert(res_data, 1, "")
-  -- vim.fn.append(vim.fn.getcurpos()[2], res_data)
 end

lua/gopher/installer.lua

···
   gotests = "github.com/cweill/gotests",
 }
 
+---@param pkg string
 local function install(pkg)
   local url = urls[pkg] .. "@latest"