public static Task <long> LongCountAsync <TEntity>(this IQueryable <TEntity> source, CancellationToken cancellationToken = default) => MongoQueryable.LongCountAsync((IMongoQueryable <TEntity>)source, cancellationToken);
public static Task <long> LongCountAsync <TEntity>(this IQueryable <TEntity> source, CancellationToken cancellationToken = default) => MongoQueryable.LongCountAsync((IMongoQueryable <TEntity>)source, cancellationToken);