| add_tags | Add tags to an R object | 
| clean_tags | Remove the 'tags' attribute from an object | 
| has_tag | Check if an R object has specified tags | 
| ls_bytag | List objects in an environment by tag | 
| rm_bytag | Remove Objects by Tag | 
| set_confirm | Set confirmation prompt for deleting objects | 
| tags | Retrieve tags associated with an object | 
| untag | Remove tags from an object |