tar_archive             Function factory for archived targets
tar_archive_script      Path to the archived target script file
tar_archive_store       Path to the archived target store directory
tar_make_archive        Run an archived pipeline of targets.
tar_read_archive        Read a target's value from archive storage
tar_source_archive      Run archived R scripts.
tar_target_archive      Declare a target to read an archive.
use_tarchives           Use tarchives
