Issue #13237: Make the subprocess convenience helper documentation self-contained aside from the shared parameter description. Downgrade the pipe warnings at that level to notes (since those pipes are hidden, people are unlikely to even try it)
Issue #13237: Make the subprocess convenience helper documentation self-contained aside from the shared parameter description. Downgrade the pipe warnings at that level to notes (since those pipes are hidden, people are unlikely to even try it)

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator