From 6d744574cd4981258cc3ea7c101f3e6a9b162847 Mon Sep 17 00:00:00 2001
From: "Michael A. Perlin" <mika.perlin@gmail.com>
Date: Tue, 25 Jan 2022 10:46:02 -0600
Subject: [PATCH] Documentation fix for `cirq.Circuit.prev_moment_operating_on`
 (#4895)

See #4894 concerning a single-word documentation error for `cirq.Circuit.prev_moment_operating_on`
---
 cirq-core/cirq/circuits/circuit.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cirq-core/cirq/circuits/circuit.py b/cirq-core/cirq/circuits/circuit.py
index bb298b823f8..ba37f9d24c4 100644
--- a/cirq-core/cirq/circuits/circuit.py
+++ b/cirq-core/cirq/circuits/circuit.py
@@ -349,7 +349,7 @@ def prev_moment_operating_on(
         end_moment_index: Optional[int] = None,
         max_distance: Optional[int] = None,
     ) -> Optional[int]:
-        """Finds the index of the next moment that touches the given qubits.
+        """Finds the index of the previous moment that touches the given qubits.
 
         Args:
             qubits: We're looking for operations affecting any of these qubits.