private downloadMultipleFiles(boardingPassURLs : string[]): void{
    boardingPassURLs.forEach((url) => {
      setTimeout(() => {
        this.downloadFileService.downloadFileFromURL(url).subscribe((blob) => {
          const a = document.createElement('a');
          const objectUrl = URL.createObjectURL(blob);
          a.href = objectUrl;
          a.download = 'filenameXYZ.pkpass';
          a.click();
          URL.revokeObjectURL(objectUrl);
        });
      },500);
    });
    this.checkinDetailsBoardingpassService.setIsBoardinpassLoaderVisible(false);
  }

downloadFileFromURL(url: string) {
    return this.http.get(url, { responseType: 'blob' });
  }

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