How to Auto indent code in Atom editor

Auto indent it’s hidden function is hidden in menu Ediror > Lines > Auto Indent but shortcut missing :-(

Press cmd + shift + p then type keymap and hit enter Open Your Keymap.

Open Your Keymap

and add follow code there

'atom-text-editor':
  'cmd-alt-l': 'editor:auto-indent'

Now your Atom edit can Auto Indent with cmd + alt + l