Added necessary functions

Author: antonpirker

sentry_sdk/integrations/feature_flags.py

@@ -25,6 +25,10 @@ class FeatureFlagsIntegration(Integration):
 
     identifier = "feature_flags"
 
+    def setup_once():
+        # type: () -> None
+        pass
+
 
 def add_feature_flag(flag, result):
     # type: (str, bool) -> None

sentry_sdk/integrations/launchdarkly.py

@@ -37,6 +37,10 @@ def __init__(self, ld_client=None):
         # Register the flag collection hook with the LD client.
         client.add_hook(LaunchDarklyHook())
 
+    def setup_once():
+        # type: () -> None
+        pass
+
 
 class LaunchDarklyHook(Hook):