runCommand -package:shake -package:amazonka-cloudwatch-events -is:exact -package:mongoDB -package:structured-cli -package:graphviz -package:github-release -package:hledger -package:io-streams -package:libmpd package:options

Either calls the given continuation, prints help text and calls exitSuccess, or prints an error and calls exitFailure. See runSubcommand for details on subcommand support.