PDF.js v4-Open findBar by default

I embedded a PDF using pdfjs-4.0.379, and in the previous version (version 2) I had something similar to this:

...
key: "setHash",
    value: function setHash(hash) {
        //aqui
      var pageNumber, dest;      

      if (hash.includes("=")) {
        var params = (0, _ui_utils.parseQueryString)(hash);
        
        if ("search" in params) {
          this.eventBus.dispatch("findfromurlhash", {
            source: this,
            query: params.search.replace(/"/g, ""),
            phraseSearch: params.phrase === "true"
          });
        }
        
         if ('search' in params) { 
              PDFViewerApplication.findBar.open(); 
              PDFViewerApplication.findBar.findField.value = params.search; 
              PDFViewerApplication.findBar.highlightAll.checked = true; 
              PDFViewerApplication.findBar.findNextButton.click(); 
        }
...

But how can i implement that in the current version?

I found a similar answer in this link, but it didn’t really answer my question.