my-nvim-setup/lua/mappings/lua.lua

local function map(mode, lhs, rhs, opts)
  local options = {noremap = true}
  if opts then options = vim.tbl_extend('force', options, opts) end
  vim.api.nvim_set_keymap(mode, lhs, rhs, options)
end

-- keybind list 

map('', '<leader>c', '"+y') 
--map('' , '<C-a>' , '%y+')