-- local tog = require("toggleterm").setup{
--   -- size can be a number or function which is passed the current terminal
--   size = 20 | function(term)
--     if term.direction == "horizontal" then
--       return 15
--     elseif term.direction == "vertical" then
--       return vim.o.columns * 0.4
--     end
--   end,
--   open_mapping = [[<c-\>]],
--   on_create = fun(t: Terminal), -- function to run when the terminal is first created
--   on_open = fun(t: Terminal), -- function to run when the terminal opens
--   on_close = fun(t: Terminal), -- function to run when the terminal closes
--   on_stdout = fun(t: Terminal, job: number, data: string[], name: string) -- callback for processing output on stdout
--   on_stderr = fun(t: Terminal, job: number, data: string[], name: string) -- callback for processing output on stderr
--   on_exit = fun(t: Terminal, job: number, exit_code: number, name: string) -- function to run when terminal process exits
--   hide_numbers = true, -- hide the number column in toggleterm buffers
--   shade_filetypes = {},
--   autochdir = false, -- when neovim changes it current directory the terminal will change it's own when next it's opened
--   highlights = {
--     -- highlights which map to a highlight group name and a table of it's values
--     -- NOTE: this is only a subset of values, any group placed here will be set for the terminal window split
--     Normal = {
--       guibg = "none",
--     },
--     NormalFloat = {
--       link = 'Normal'
--     },
--     FloatBorder = {
--       guifg = "none",
--       guibg = "none",
--     },
--   },
--   shade_terminals = true, -- NOTE: this option takes priority over highlights specified so if you specify Normal highlights you should set this to false
--   shading_factor = '<number>', -- the percentage by which to lighten terminal background, default: -30 (gets multiplied by -3 if background is light)
--   start_in_insert = true,
--   insert_mappings = true, -- whether or not the open mapping applies in insert mode
--   terminal_mappings = true, -- whether or not the open mapping applies in the opened terminals
--   persist_size = true,
--   persist_mode = true, -- if set to true (default) the previous terminal mode will be remembered
--   direction = 'vertical' | 'horizontal' | 'tab' | 'float',
--   close_on_exit = true, -- close the terminal window when the process exits
--    -- Change the default shell. Can be a string or a function returning a string
--   shell = vim.o.shell,
--   auto_scroll = true, -- automatically scroll to the bottom on terminal output
--   -- This field is only relevant if direction is set to 'float'
--   float_opts = {
--     -- The border key is *almost* the same as 'nvim_open_win'
--     -- see :h nvim_open_win for details on borders however
--     -- the 'curved' border is a custom border type
--     -- not natively supported but implemented in this plugin.
--     border = 'single' | 'double' | 'shadow' | 'curved' | ... other options supported by win open
--     -- like `size`, width and height can be a number or function which is passed the current terminal
--     width = <value>,
--     height = <value>,
--     winblend = 3,
--     zindex = <value>,
--   },
--   winbar = {
--     enabled = false,
--     name_formatter = function(term) --  term: Terminal
--       return term.name
--     end
--   },
-- }