base QueryStringPQLOperator ¶ QueryStringPQLOperator(query_string) Bases: PQLOperator PQLOperator for simple query string inputs. query_string property ¶ query_string: str Returns query string. UnaryPQLOperator ¶ UnaryPQLOperator(operand, **_) Bases: PQLOperator, ABC Base class for all unary PQLOperator. BinaryPQLOperator ¶ BinaryPQLOperator(lhs_operand, rhs_operand, **_) Bases: PQLOperator, ABC Base class for all binary PQLOperator.