> n()
Error: `n()` must only be used inside dplyr verbs.

> cur_data()
Error: `cur_data()` must only be used inside dplyr verbs.

> cur_column()
Error: `cur_column()` must only be used inside `across()`.

> cur_group()
Error: `cur_group()` must only be used inside dplyr verbs.

> cur_group_id()
Error: `cur_group_id()` must only be used inside dplyr verbs.

> cur_group_rows()
Error: `cur_group_rows()` must only be used inside dplyr verbs.

