Creates a new BooleanHandler that stores the given handlers.
Handlers over which it will run.
Checks if the input can be handled by this class. If it cannot handle the input, rejects with an error explaining why.
A promise resolving if the input can be handled, rejecting with an Error if not.
Handles the given input. This may only be called if canHandle did not reject. When unconditionally calling both in sequence, consider handleSafe instead.
A promise resolving when handling is finished.
A promise resolving if the input can be handled, rejecting with an Error if not.
A composite handler that returns true if any of its handlers can handle the input and return true. Handler errors are interpreted as false results.