checks all sequences of a collection of sequences for correct timestamps and event order. It supports counting the number of invalid sequences, listing details about invalid sequences and timestamps, as well as deleting invalid sequences. $USAGE$ one of "count", "list", and "delete" the name of the collection of sequences that shall be checked optional; the name of the collection of sequences into which the resulting sequences shall be stored in case the delete command is selected; if left out, the result is stored in the collection identified by Example(s): checkEventTimestamps count someSequences checkEventTimestamps list someSequences checkEventTimestamps delete someSequences someNewSequences