langchain.chains.query_constructor.parser.get_parser

langchain.chains.query_constructor.parser.get_parser(allowed_comparators: Optional[Sequence[Comparator]] = None, allowed_operators: Optional[Sequence[Operator]] = None, allowed_attributes: Optional[Sequence[str]] = None) object[source]

Return a parser for the query language.

Parameters
  • allowed_comparators (Optional[Sequence[Comparator]]) – Optional[Sequence[Comparator]]

  • allowed_operators (Optional[Sequence[Operator]]) – Optional[Sequence[Operator]]

  • allowed_attributes (Optional[Sequence[str]]) –

Returns

Lark parser for the query language.

Return type

object