code: public T responseCauseSanitizer(Function<? super Throwable, ? extends Throwable> responseCauseSanitizer) {
          this.responseCauseSanitizer = requireNonNull(responseCauseSanitizer, "responseCauseSanitizer");
          return self();
      }
docs: Sets the {@link Function} to use to sanitize a response cause before logging. You can
  sanitize the stack trace of the exception to remove sensitive information, or prevent from logging
  the stack trace completely by returning {@code null} in the {@link Function}. If unset, will use
  {@link Function#identity()}.