default boolean hasNonWhitespace() {
        return this.remainingInput().chars().anyMatch(c -> !Character.isWhitespace(c));
    }
Returns whether the {@link #remainingInput() remaining input} contains any non-whitespace characters.

@return whether the remaining input contains any non-whitespace characters
cloud-core/src/main/java/org/incendo/cloud/context/CommandInput.java