missing initialization

Author: sentrivana

sentry_sdk/profiler/transaction_profiler.py

@@ -266,6 +266,7 @@ def _set_initial_sampling_decision(self, sampling_context):
 
         options = client.options
 
+        sample_rate = None
         if callable(options.get("profiles_sampler")):
             sample_rate = options["profiles_sampler"](sampling_context)
         elif options["profiles_sample_rate"] is not None: