Function $unionWith

$unionWith(
    collection: Iterator,
    expr: string | AnyObject[] | InputExpr,
    options: Options,
): Iterator
Combines two aggregations into a single result set.

See usage.
Parameters
- collection: Iterator
- expr: string | AnyObject[] | InputExpr
- options: Options
Returns Iterator
- Defined in src/operators/pipeline/unionWith.ts:17