Add getting a TEMPLATE from an environment variable

blueprints/function_calling_blueprint.py

@@ -62,7 +62,7 @@ def __init__(self, prompt: str | None = None) -> None:
                 ),
                 "OPENAI_API_KEY": os.getenv("OPENAI_API_KEY", "YOUR_OPENAI_API_KEY"),
                 "TASK_MODEL": os.getenv("TASK_MODEL", "gpt-3.5-turbo"),
-                "TEMPLATE": """Use the following context as your learned knowledge, inside <context></context> XML tags.
+                "TEMPLATE": os.getenv("TEMPLATE", """Use the following context as your learned knowledge, inside <context></context> XML tags.
 <context>
     {{CONTEXT}}
 </context>
@@ -71,7 +71,7 @@ def __init__(self, prompt: str | None = None) -> None:
 - If you don't know, just say that you don't know.
 - If you don't know when you are not sure, ask for clarification.
 Avoid mentioning that you obtained the information from the context.
-And answer according to the language of the user's question.""",
+And answer according to the language of the user's question."""),
             }
         )