PageSpeed Insights API V5

I want to integrate Google mobile friendly and desktop friendly api with PageSpeed Insights API V5. But I'm unable to differentiate Audit section. I tried too scenario's for differntiate but I couldn't.

How to differentiate Passed Audits, Diagnostics and Opportunities in PageSpeed Insights API V5?

Below is the code which GoogleChrome lighthouse uses to differentiate Opportunities, Diagnostics and Passed audits which you can find at below github link.

// Opportunities
const opportunityAudits = category.auditRefs
        .filter(audit => audit.group === 'load-opportunities' && !Util.showAsPassed(audit.result))
        .sort((auditA, auditB) => this._getWastedMs(auditB) - this._getWastedMs(auditA));

// Diagnostics
const diagnosticAudits = category.auditRefs
        .filter(audit => audit.group === 'diagnostics' && !Util.showAsPassed(audit.result))
        .sort((a, b) => {
          const scoreA = a.result.scoreDisplayMode === 'informative' ? 100 : Number(a.result.score);
          const scoreB = b.result.scoreDisplayMode === 'informative' ? 100 : Number(b.result.score);
          return scoreA - scoreB;
        });

// Passed audits
const passedAudits = category.auditRefs
        .filter(audit => (audit.group === 'load-opportunities' || audit.group === 'diagnostics') &&
            Util.showAsPassed(audit.result));

Reference : https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/report/html/renderer/performance-category-renderer.js

In above code the Util.showAsPassed() method has been specified as below.

const PASS_THRESHOLD = 0.9;
const RATINGS = {
  PASS: {label: 'pass', minScore: PASS_THRESHOLD},
  AVERAGE: {label: 'average', minScore: 0.5},
  FAIL: {label: 'fail'},
  ERROR: {label: 'error'},
};

static showAsPassed(audit) {
    switch (audit.scoreDisplayMode) {
      case 'manual':
      case 'notApplicable':
        return true;
      case 'error':
      case 'informative':
        return false;
      case 'numeric':
      case 'binary':
      default:
        return Number(audit.score) >= RATINGS.PASS.minScore;
    }
  }

Reference : https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/report/html/renderer/util.js

Thanks