From eb5bf6508231d50f79090c43e7237cb9735eb7d8 Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Wed, 16 Nov 2022 11:17:32 +0100
Subject: Making append method to return self instance.

---
 src/argaze/DataStructures.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/argaze/DataStructures.py b/src/argaze/DataStructures.py
index 08bcac9..0c1dd5e 100644
--- a/src/argaze/DataStructures.py
+++ b/src/argaze/DataStructures.py
@@ -52,12 +52,14 @@ class TimeStampedBuffer(collections.OrderedDict):
 
         return json.dumps(self, default=vars)
 
-    def append(self, timestamped_buffer: TimeStampedBufferType):
+    def append(self, timestamped_buffer: TimeStampedBufferType) -> TimeStampedBufferType:
         """Append a timestamped buffer."""
 
         for ts, value in timestamped_buffer.items():
             self[ts] = value
 
+        return self
+
     def get_first(self) -> Tuple[TimeStampType, DataType]:
         """Easing access to first item."""
 
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