Check for usage of unavailable functions. Not reliable for testing r-devel dependencies.
backport_linter(r_version = getRversion(), except = character())
Minimum R version to test for compatibility
Character vector of functions to be excluded from linting. Use this to list explicitly defined backports, e.g. those imported from the backports package or manually defined in your package.
linters for a complete list of linters available in lintr.