value = comparison.value
        if isinstance(comparison.value, bool):
            value_type = "valueBoolean"
        elif isinstance(comparison.value, float):
            value_type = "valueNumber"
        elif isinstance(comparison.value, int):
            value_type = "valueInt"
        elif (
            isinstance(comparison.value, dict)
            and comparison.value.get("type") == "date"
        ):
            value_type = "valueDate"
            # ISO 8601 timestamp, formatted as RFC3339
            date = datetime.strptime(comparison.value["date"], "%Y-%m-%d")
            value = date.strftime("%Y-%m-%dT%H:%M:%SZ")
        filter = {
            "path": [comparison.attribute],
            "operator": self._format_func(comparison.comparator),
            value_type: value,
        }
        return filter
[docs]    def visit_structured_query(
        self, structured_query: StructuredQuery
    ) -> Tuple[str, dict]:
        if structured_query.filter is None:
            kwargs = {}
        else:
            kwargs = {"where_filter": structured_query.filter.accept(self)}
        return structured_query.query, kwargs