check_attached_environments
                        Check environments attached to the search path
check_attached_packages
                        Check attached packages
check_globalenv_objects
                        Check global environment objects
check_loaded_namespaces
                        Check loaded namespaces
check_required_locale   Check required values for locale settings
check_required_options
                        Check required values for options
check_required_sysenv   Check required values for system environment
                        variables
check_sessiontime       Check session run time
coercion_methods        Coerce session check object to a data frame
display_methods         Format and print sessioncheck objects
sessioncheck            Checks the overall status of the R session
