code: def _get_asconv_headers(mosaic):
      
      asconv_headers = re.findall(r'### ASCCONV BEGIN(.*)### ASCCONV END ###',
                                  mosaic[Tag(0x0029, 0x1020)].value.decode(encoding='ISO-8859-1'),
                                  re.DOTALL)[0]
  
      return asconv_headers
docs: Getter for the asconv headers (asci header info stored in the dicom)