Creates a new UnionHandler.
When requireAll is false or ignoreErrors is true,
the length of the input to combine can vary;
otherwise, it is exactly the number of handlers.
Checks if all handlers can handle the input. If not, throw an error based on the errors of the failed handlers.
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.
Combines the results of the handlers into a single output.
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.
Input data that will be handled if it can be handled.
A promise resolving if the input can be handled, rejecting with an Error if not.
Combines the results of several CredentialsExtractors into one. If multiple of these extractors return a value for the same key, the last result will be used.