From 2a3693b8bbbb02bc65d69603a0e4589ab9de026f Mon Sep 17 00:00:00 2001
From: Marco Gorelli <33491632+MarcoGorelli@users.noreply.github.com>
Date: Sat, 1 Jun 2024 18:16:23 +0100
Subject: [PATCH] remove non-existent argument

---
 narwhals/expression.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/narwhals/expression.py b/narwhals/expression.py
index 1e5f53a38..bd87ba16a 100644
--- a/narwhals/expression.py
+++ b/narwhals/expression.py
@@ -2358,9 +2358,6 @@ def len() -> Expr:
     """
     Return the number of rows.
 
-    Arguments:
-        *columns: Name(s) of the columns to use in the aggregation function.
-
     Examples:
         >>> import polars as pl
         >>> import pandas as pd