// the instance pointer will be updated to point at the new Instance.
func (b *builder) With(i *echo.Instance, cfg echo.Config) Builder {
	if b.ctx.Settings().SkipWorkloadClassesAsSet().Contains(cfg.WorkloadClass()) {
		return b
	}

	cfg = cfg.DeepCopy()
	if err := cfg.FillDefaults(b.ctx); err != nil {
		b.errs = multierror.Append(b.errs, err)
		return b
	}