code: def download(self, url, dst, timeout=None):
          
          response = self.get_response(url, timeout=timeout)
          if response:
              with open(dst, "wb") as f:
                  for block in response.iter_content(1024):
                      if not block:
                          break
                      f.write(block)
docs: Download the binary file at url to distination path.