code: def validate_read(self, address):
          
  
          if not any(address.startswith(ns) for ns in self._read_list):
              raise AuthorizationException(address=address)
docs: Raises an exception if the address is not allowed to be read in
          this context, based on txn inputs.
  
          Args:
              address (str): An address to be validated.
  
          Returns:
              None
  
          Raises:
              AuthorizationException