How to use the @lhci/utils/src/audit-diff-finder.findAuditDiffs function in @lhci/utils

.map(audit => {
        const baseAudit = baseLhr && baseLhr.audits[audit.id || ''];
        const diffs = baseAudit
          ? findAuditDiffs(baseAudit, audit, {...options, synthesizeItemKeyDiffs: true})
          : [];
        const maxSeverity = Math.max(...diffs.map(getDiffSeverity), 0);
        return {audit, baseAudit, diffs, maxSeverity, group: intermediateGroup.group};
      })
      .filter(pair => !pair.baseAudit || pair.diffs.length);

.map(audit => {
        const baseAudit = baseLhr && baseLhr.audits[audit.id || ''];
        const diffs = baseAudit ? findAuditDiffs(baseAudit, audit) : [];
        const maxSeverity = Math.max(...diffs.map(getDiffSeverity), 0);
        return {audit, baseAudit, diffs, maxSeverity, group: intermediateGroup.group};
      })
      .filter(pair => !pair.baseAudit || pair.diffs.length);