mingo
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MongoDB query language for in-memory objects
9 lines (8 loc) • 364 B
TypeScript
import { Iterator } from "../../lazy";
import { Options } from "../../types";
/**
* Returns a count of the number of documents at this stage of the aggregation pipeline.
*
* See {@link https://www.mongodb.com/docs/manual/reference/operator/aggregation/count usage}.
*/
export declare function $count(coll: Iterator, expr: string, _options: Options): Iterator;