Fix env variable casting to int

Author: wesleysimbiose

tests_and_examples/run_query_tests.py

@@ -40,7 +40,7 @@ def __init__(self, api_key, verbose=False, endpoint_test=True):
         # Translation table for fields with timestamp
         self.field_translation = {}
 
-        self.sleep_time = os.environ.get("CLIENT_SLEEP_TIME", 5)  # seconds
+        self.sleep_time = int(os.environ.get("CLIENT_SLEEP_TIME", 5))  # seconds
         self.path = 'examples/'  # Directory containing examples to test
         self.extension = '.json'  # Examples file format