diff --git a/src/lumigo_opentelemetry/instrumentations/botocore/parsers/__init__.py b/src/lumigo_opentelemetry/instrumentations/botocore/parsers/__init__.py
index 959a9b8b..437f0e9f 100644
--- a/src/lumigo_opentelemetry/instrumentations/botocore/parsers/__init__.py
+++ b/src/lumigo_opentelemetry/instrumentations/botocore/parsers/__init__.py
@@ -138,12 +138,14 @@ def parse_request(
         span.set_attributes(attributes)
 
     @staticmethod
-    def _should_skip_empty_sqs_polling_response(operation_name: str, result: Dict[Any, Any]) -> bool:
+    def _should_skip_empty_sqs_polling_response(
+        operation_name: str, result: Dict[Any, Any]
+    ) -> bool:
         """
         checks the sqs response & returns true if the request receive messages from SQS but no messages were returned
         """
 
-        empty_sqs_poll = operation_name == 'ReceiveMessage' and 'Messages' not in result
+        empty_sqs_poll = operation_name == "ReceiveMessage" and "Messages" not in result
         return empty_sqs_poll and get_boolean_env_var(AUTO_FILTER_EMPTY_SQS, True)
 
     @staticmethod
@@ -160,8 +162,10 @@ def parse_response(
 
         # Filter out sqs polls with empty response
         if SqsParser._should_skip_empty_sqs_polling_response(operation_name, result):
-            logger.debug('Not tracing empty SQS polling requests '
-                         f'(override by setting the {AUTO_FILTER_EMPTY_SQS} env var to false)')
+            logger.debug(
+                "Not tracing empty SQS polling requests "
+                f"(override by setting the {AUTO_FILTER_EMPTY_SQS} env var to false)"
+            )
             set_span_no_export(span)
 
 
diff --git a/src/lumigo_opentelemetry/libs/environment_variables.py b/src/lumigo_opentelemetry/libs/environment_variables.py
index a63efc4a..6172c0b6 100644
--- a/src/lumigo_opentelemetry/libs/environment_variables.py
+++ b/src/lumigo_opentelemetry/libs/environment_variables.py
@@ -1 +1 @@
-AUTO_FILTER_EMPTY_SQS = 'AUTO_FILTER_EMPTY_SQS'
+AUTO_FILTER_EMPTY_SQS = "AUTO_FILTER_EMPTY_SQS"
diff --git a/src/lumigo_opentelemetry/resources/span_processor.py b/src/lumigo_opentelemetry/resources/span_processor.py
index 0881da9a..f804ea49 100644
--- a/src/lumigo_opentelemetry/resources/span_processor.py
+++ b/src/lumigo_opentelemetry/resources/span_processor.py
@@ -6,13 +6,12 @@
 
 
 class LumigoSpanProcessor(BatchSpanProcessor):
-
     def on_end(self, span: ReadableSpan) -> None:
         if should_not_export_span(span):
-            logger.debug('Not exporting span because it has NO_EXPORT=True attribute')
+            logger.debug("Not exporting span because it has NO_EXPORT=True attribute")
             return
 
-        return super().on_end(span)
+        super().on_end(span)
 
 
 def should_not_export_span(span: ReadableSpan) -> bool:
@@ -21,10 +20,10 @@ def should_not_export_span(span: ReadableSpan) -> bool:
     @param span: A readable span to check
     @return: True if the span should not be exported, False otherwise
     """
-    return span.attributes.get('NO_EXPORT') is True
+    return span.attributes.get("NO_EXPORT") is True
 
 
-def set_span_no_export(span: Span, no_export: bool = True):
+def set_span_no_export(span: Span, no_export: bool = True) -> None:
     """
     marks the span as a span not intended for export (for example in spans that create a lot of noise and customers
     do not want to trace)
@@ -34,4 +33,4 @@ def set_span_no_export(span: Span, no_export: bool = True):
     @return:
     """
 
-    span.set_attributes({'NO_EXPORT': no_export})
+    span.set_attributes({"NO_EXPORT": no_export})