# NOT RUN {
tar_dir({
tar_script(tar_pipeline(tar_target(x, 1 + 1)))
tar_outdated()
tar_script(
tar_pipeline(
tar_target(y1, 1 + 1),
tar_target(y2, 1 + 1),
tar_target(z, y1 + y2)
)
)
tar_outdated()
})
# }
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