Running Nmisc::get_packages(..., package_options = "referenced") throws the following warning:
Warning message: 'as.tibble()' was deprecated in tibble 2.0.0. ℹ Please use 'as_tibble()' instead. ℹ The signature and semantics have changed, see '?as_tibble'. ℹ The deprecated feature was likely used in the Nmisc package. Please report the issue at <https://github.com/numeract/Nmisc/issues>. This warning is displayed once every 8 hours. Call 'lifecycle::last_lifecycle_warnings()' to see where this warning was generated.
It seems that only Nmisc:::get_referenced_packages() contains tibble::as.tibble(), as Nmisc:::get_library_packages() and Nmisc:::get_description_packages() options both use tibble::as_tibble()