From 03eb279227713addc9b7412ac2288ae6966b53bc Mon Sep 17 00:00:00 2001
From: mhostetter <matthostetter@gmail.com>
Date: Sat, 8 Jul 2023 17:05:41 -0400
Subject: [PATCH] Fix linter errors

---
 src/sdr/_iir.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sdr/_iir.py b/src/sdr/_iir.py
index 1ceaa9e1f..6dac47fad 100644
--- a/src/sdr/_iir.py
+++ b/src/sdr/_iir.py
@@ -1,3 +1,6 @@
+"""
+A module for infinite impulse response (IIR) filters.
+"""
 import matplotlib.pyplot as plt
 import numpy as np
 import scipy.signal