$ heroku update
$ heroku plugins:install autocomplete
$ heroku autocomplete
display autocomplete installation instructions
USAGE
$ heroku autocomplete [SHELL]
ARGUMENTS
SHELL shell type
OPTIONS
-s, --skip-instructions don't show installation instructions
EXAMPLES
$ heroku autocomplete
$ heroku autocomplete bash
$ heroku autocomplete zsh
See code: src/commands/autocomplete/index.ts