def get_column_name_from_alias(cls, alias: str) -> str:
        """
        Returns ormar field name for given db alias (column name in db).
        If field do not have alias it's returned as is.
        :param alias:
        :type alias: str
        :return: field name if set, otherwise passed alias (db name)
        :rtype: str
        """
        for field_name, field in cls.ormar_config.model_fields.items():
            if field.get_alias() == alias:
                return field_name
        return alias  # if not found it's not an alias but actual name

        Returns ormar field name for given db alias (column name in db).
        If field do not have alias it's returned as is.
        :param alias:
        :type alias: str
        :return: field name if set, otherwise passed alias (db name)
        :rtype: str
        
ormar/models/mixins/alias_mixin.py