| onetime-package | Run code only once | 
| check_ok_to_store | Check if the package has permission to store files on the user's computer | 
| onetime | Run code only once | 
| onetime-rlang | Print a warning or message only once using 'rlang' functions | 
| onetime_been_done | Check if a onetime call has already been made | 
| onetime_dir | Return a path to a directory beneath the onetime base directory | 
| onetime_do | Run code only once | 
| onetime_mark_as_done | Mark an action as done | 
| onetime_message | Print a warning or message only once | 
| onetime_message_confirm | Print a message, and ask for confirmation to hide it in future | 
| onetime_only | Wrap a function to be called only once | 
| onetime_reset | Reset a onetime call by ID | 
| onetime_rlang_inform | Print a warning or message only once using 'rlang' functions | 
| onetime_rlang_warn | Print a warning or message only once using 'rlang' functions | 
| onetime_startup_message | Print a warning or message only once | 
| onetime_warning | Print a warning or message only once | 
| set_ok_to_store | Grant or revoke permission to store lockfiles on the user's computer |