Argument behavior in the wild

Developers can signal argument behavior via roxygen2 tags…

@param foo <[`data-masked`][dplyr::dplyr_data_masking]> What `foo` does.

@param bar <[`tidy-select`][dplyr::dplyr_tidy_select]> What `bar` does.

@param ... <[`dynamic-dots`][rlang::dyn-dots]> What these dots do.

… and they have

• Data masking in mutate.
• Tidy selection in, well, select.
• Dynamic dots in tibble.