From f15821fe272707930caab57c0e906bdb0d04074f Mon Sep 17 00:00:00 2001
From: Ali Alnosairi <144171192+Ali-Alnosairi@users.noreply.github.com>
Date: Thu, 19 Sep 2024 20:08:26 +0300
Subject: [PATCH] Update type signature of get_metrics_data() to accept "None"
 return type (#4186)

---
 .../src/opentelemetry/sdk/metrics/_internal/export/__init__.py  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
index cf94bc565e..4acf1cc81d 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/export/__init__.py
@@ -404,7 +404,7 @@ def __init__(
 
     def get_metrics_data(
         self,
-    ) -> "opentelemetry.sdk.metrics.export.MetricsData":
+    ) -> Optional["opentelemetry.sdk.metrics.export.MetricsData"]:
         """Reads and returns current metrics from the SDK"""
         with self._lock:
             self.collect()