private static PSRuleOption Combine(PSRuleOption o1, PSRuleOption o2)
        {
            var result = new PSRuleOption(o1?.SourcePath ?? o2?.SourcePath, o1);

            result.Configuration = ConfigurationOption.Combine(result.Configuration, o2?.Configuration);
            result.Output        = OutputOption.Combine(result.Output, o2?.Output);
            return(result);
        }