public static Task <IPageResult <TEntity> > PageAsync <TKey, TEntity>(this IQueryStore <TKey, TEntity> queryStore, IStorageDbConnection conn, int skip, int take, IEnumerable <Expression <Func <TEntity, object> > > selectFields, IDbTransaction tr, CancellationToken cancellationToken)
     where TKey : IEquatable <TKey>
     where TEntity : class, IEntity <TKey>
 {
     if (queryStore == null)
     {
         throw new ArgumentNullException(nameof(queryStore));
     }
     return(queryStore.PageAsync(conn, skip, take, selectFields, WhereClauseResult.Null, OrderbyClauseResult.Null, tr, cancellationToken));
 }
 public static Task <IPageResult <TEntity> > PageAsync <TKey, TEntity>(this IQueryStore <TKey, TEntity> queryStore, IStorageDbConnection conn, int skip, int take, IDbTransaction tr)
     where TKey : IEquatable <TKey>
     where TEntity : class, IEntity <TKey>
 {
     if (queryStore == null)
     {
         throw new ArgumentNullException(nameof(queryStore));
     }
     return(queryStore.PageAsync(conn, skip, take, null, WhereClauseResult.Null, OrderbyClauseResult.Null, tr, default(CancellationToken)));
 }