docs: def get_content(self, zipbundle):
          """Get content."""
  
          for content, filename in self.get_zip_content(zipbundle):
              with io.BytesIO(content) as b:
                  encoding = self._analyze_file(b)
                  if encoding is None:
                      encoding = self.default_encoding
                  b.seek(0)
                  text = b.read().decode(encoding)
              yield text, filename, encoding