Code
options(rlang_user_facing = NA)
(expect_error(env_is_user_facing(empty_env())))
Output
<error/rlang_error>
Error in `env_is_user_facing()`:
! `options(rlang_user_facing = )` must be `TRUE`, `FALSE`, or a package name, not `NA`.
i The option was reset to `NULL`.
Code
expect_null(peek_option("rlang_user_facing"))
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.