import { Observable } from "rxjs";
import { Repo } from "./types";
/**
 * Gets the count of entities in the supplied repository. Entities that are currently
 * inactive (the Entity's ActiveTo date is before the current time) are counted as well.
 *
 * @example
 * Log number of users in database:
 * ```typescript
 * import { Geotab } from "geotab-rx";
 * import { count } from "geotab-rx/repository/count";
 *
 * function logNumberOfUsers(geotab: Geotab) {
 *   count(geotab.users)
 *     .subscribe(count =>
 *       console.log(`Number of users = '${count}'`)
 *     );
 * }
 * ```
 *
 * @param repo - The repository to get size of.
 * @returns Number of entities in supplied repository.
 */
export declare function count<TRepo extends Repo<unknown>>(repo: Repo<TRepo>): Observable<number>;
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