docs: def from_bank_code(cls, country_code, bank_code):
          """Create a new BIC object from country- and bank-code.
  
          Examples:
              >>> bic = BIC.from_bank_code('DE', '20070000')
              >>> bic.country_code
              'DE'
              >>> bic.bank_code
              'DEUT'
              >>> bic.location_code
              'HH'
  
              >>> BIC.from_bank_code('DE', '01010101')
              Traceback (most recent call last):
              ...
              ValueError: Invalid bank code '01010101' for country 'DE'
  
  
          Args:
              country_code (str): ISO 3166 alpha2 country-code.
              bank_code (str): Country specific bank-code.
  
          Returns:
              BIC: a BIC object generated from the given country code and bank code.
  
          Raises:
              ValueError: If the given bank code wasn't found in the registry
  
          Note:
              This currently only works for German bank-codes.
          """
          try:
              return cls(registry.get('bank_code')[(country_code, bank_code)]['bic'])
          except KeyError:
              raise ValueError("Invalid bank code {!r} for country {!r}".format(bank_code,
                                                                                country_code))