require("toggleterm").setup{
  size            = 20,
  open_mapping    = [[<C-z>]],
  hide_numbers    = true,
  shade_filetypes = {},
  shade_terminals = true,
  shading_factor  = 1,
  start_in_insert = true,
  insert_mappings = true,
  persist_size    = true,
  direction       = 'tab',
  close_on_exit   = true
}
