| object_type | Identify the class, type, etc of an object |
| stabilize_arg | Ensure an argument meets expectations |
| stabilize_arg_scalar | Ensure an argument meets expectations |
| stabilize_chr | Ensure a character argument meets expectations |
| stabilize_chr_scalar | Ensure a character argument meets expectations |
| stabilize_fct | Ensure a factor argument meets expectations |
| stabilize_fct_scalar | Ensure a factor argument meets expectations |
| stabilize_int | Ensure an integer argument meets expectations |
| stabilize_int_scalar | Ensure an integer argument meets expectations |
| stabilize_lgl | Ensure a logical argument meets expectations |
| stabilize_lgl_scalar | Ensure a logical argument meets expectations |
| to_chr | Ensure a character argument meets expectations |
| to_chr_scalar | Ensure a character argument meets expectations |
| to_fct | Ensure a factor argument meets expectations |
| to_fct_scalar | Ensure a factor argument meets expectations |
| to_int | Ensure an integer argument meets expectations |
| to_int_scalar | Ensure an integer argument meets expectations |
| to_lgl | Ensure a logical argument meets expectations |
| to_lgl_scalar | Ensure a logical argument meets expectations |