code: def validate(src, **kwargs):
      
      resolver = Resolver()
      validator = OcrdZipValidator(resolver, src)
      report = validator.validate(**kwargs)
      print(report)
      if not report.is_valid:
          sys.exit(1)
docs: Validate OCRD-ZIP
  
      SRC must exist an be an OCRD-ZIP, either a ZIP file or a directory.