i tried to config nvim-tree like this but it seems dont work.
mappings = {
custom_only = false,
list = {
{ key = 'l', cb = require'nvim-tree.config'.nvim_tree_callback "preview" },
{ key = 'v', cb = require'nvim-tree.config'.nvim_tree_callback "vsplit" },
{ key = 's', cb = require'nvim-tree.config'.nvim_tree_callback "split" },
{ key = '.', cb = require'nvim-tree.config'.nvim_tree_callback "toggle_dotfiles" },
{ key = '!', cb = require'nvim-tree.config'.nvim_tree_callback "run_file_command" },
{ key = '?', cb = require'nvim-tree.config'.nvim_tree_callback "toggle_help" },
{ key = '<TAB>', cb = require'nvim-tree.config'.nvim_tree_callback "" }
},
},