Comment (by Roland Haas):

I am thinking it might be useful to have code in Piraha that would make it possible that all elements of the parsed grammar tree (or a subtree’s children) were “consumed” (other than the filler) to avoid accidentally introducing new peg elements but not handling them in the C/Perl code.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2192/scheduleccl-sync-allows-for-timelevels