@fluent<EOL><INDENT>def new(self, attribute, operation=ChainOperator.AND):<DEDENT>
if isinstance(operation, str):<EOL><INDENT>operation = ChainOperator(operation)<EOL><DEDENT>self._chain = operation<EOL>self._attribute = self._get_mapping(attribute) if attribute else None<EOL>self._negation = False<EOL>return self<EOL>
Combine with a new query

        :param str attribute: attribute of new query
        :param ChainOperator operation: operation to combine to new query
        :rtype: Query