Fails to anonymize instances when Mitra Global Patient ID VR is OB

[blairconrad]

Sometimes instances have bad VRs for the Mitra Global Patient ID: OB.
In this case, dicognito fails to anonymize because it can't concatenate the seed value (a string) with the binary value:

…
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\idanonymizer.py", line 69, in __call__
    if self._anonymize_mitra_global_patient_id(dataset, data_element):
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\idanonymizer.py", line 104, in _anonymize_mitra_global_patient_id
    self._replace_id(data_element)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\idanonymizer.py", line 112, in _replace_id
    data_element.value = self._new_id(data_element.value)
                         ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\idanonymizer.py", line 115, in _new_id
    indexes = self.randomizer.get_ints_from_ranges(original_value, *self._indices_for_randomizer)
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\randomizer.py", line 68, in get_ints_from_ranges
    big_int = self.to_int(original_value)
  File "D:\Users\amidu\AppData\Roaming\uv\tools\dicognito\Lib\site-packages\dicognito\randomizer.py", line 43, in to_int
    message = self.seed + original_value
              ~~~~~~~~~~^~~~~~~~~~~~~~~~
TypeError: can only concatenate str (not "bytes") to str

module	version
platform	Windows-10-10.0.19045-SP0
Python	3.13.0 (main, Oct 7 2024, 23:43:56) [MSC v.1929 64 bit (AMD64)]
dicognito	0.18.0
pydicom	3.0.1