@API(status = API.Status.STABLE)
    public static <C> @NonNull ParserDescriptor<C, Boolean> booleanParser() {
        return booleanParser(false /* liberal */);
    }
Creates a new boolean parser that only accepts {@code true} and {@code false}.

@param <C> the command sender type
@return the created parser
cloud-core/src/main/java/org/incendo/cloud/parser/standard/BooleanParser.java