Parent key (#121)

* parent key support

* optional logic clarification

* environ check once

* assign env key

* assign env key

agentops/client.py

@@ -62,8 +62,10 @@ def __init__(self, api_key: Optional[str] = None,
 
         # These handle the case where .init() is used with optionals, and one of these
         # params are None, which is does not trigger the Optional default in the constructor
-        if not api_key and not environ.get('AGENTOPS_API_KEY'):
-            logging.warning("AgentOps: No API key provided - no data will be recorded.")
+        if not api_key:
+            api_key = environ.get("AGENTOPS_API_KEY")
+            if not api_key:
+                logging.warning("AgentOps: No API key provided - no data will be recorded.")
             return
 
         if not parent_key: