Fix final issues in section-4 notebooks

- Fixed memory_context list comprehension in 03_grounding_with_memory
- Changed redis_config.get_redis_client() to redis_config.redis_client (property)

Author: abrookins

python-recipes/context-engineering/notebooks/section-4-optimizations/03_grounding_with_memory.ipynb

@@ -156,7 +156,7 @@
         "    )\n",
         "    \n",
         "    # Build context from memories\n",
-        "    memory_context = \"\\n\".join([f\"- {m.text}\" for m in memories]) if memories else \"None\".memories\n",
+        "    memory_context = \"\\n\".join([f\"- {m.text}\" for m in memories.memories]) if memories.memories else \"None\"\n",
         "    \n",
         "    system_prompt = f\"\"\"You are a helpful class scheduling agent for Redis University.\n",
         "\n",

python-recipes/context-engineering/notebooks/section-4-optimizations/05_crafting_data_for_llms.ipynb

@@ -172,7 +172,7 @@
         "memory_client = MemoryClient(config=config)\n",
         "llm = ChatOpenAI(model=\"gpt-4o\", temperature=0)\n",
         "tokenizer = tiktoken.encoding_for_model(\"gpt-4o\")\n",
-        "redis_client = redis_config.get_redis_client()\n",
+        "redis_client = redis_config.redis_client\n",
         "\n",
         "def count_tokens(text: str) -> int:\n",
         "    return len(tokenizer.encode(text))\n",