Returns a command that does the opposite of the given command --- result.apply() calls command.unapply() and result.unapply() calls command.apply().
result.apply()
command.unapply()
result.unapply()
command.apply()
Returns a command that does the opposite of the given command ---
result.apply()callscommand.unapply()andresult.unapply()callscommand.apply().