Concatenates a list of Attribute Details data structures parsed from a remote file

def _parse_attribute_details(self, prop=ATTRIBUTES):
        """ Concatenates a list of Attribute Details data structures parsed from a remote file """

        parsed_attributes = self._parse_attribute_details_file(prop)
        if parsed_attributes is None:
            # If not in the (official) remote location, try the tree itself
            parsed_attributes = self._parse_complex_list(prop)

        for attribute in (a for a in parsed_attributes if not a['aliases']):
            # Aliases are not in ISO standard: default to label
            attribute['aliases'] = attribute['label']

        return get_default_for_complex(prop, parsed_attributes)