Fix invalid notebook format in Assistants API overview (#1681)

Author: damon-openai

examples/Assistants_API_overview_python.ipynb

@@ -193,7 +193,7 @@
        " 'response_format': 'auto',\n",
        " 'temperature': 1.0,\n",
        " 'tool_resources': {'code_interpreter': None, 'file_search': None},\n",
-       " 'top_p': 1.0}"
+       " 'top_p': 1.0}",
        " 'tools': [],\n",
        " 'response_format': 'auto',\n",
        " 'temperature': 1.0,\n",
@@ -260,7 +260,7 @@
        " 'created_at': 1736340398,\n",
        " 'metadata': {},\n",
        " 'object': 'thread',\n",
-       " 'tool_resources': {'code_interpreter': None, 'file_search': None}}"
+       " 'tool_resources': {'code_interpreter': None, 'file_search': None}}",
        " 'object': 'thread',\n",
        " 'tool_resources': {'code_interpreter': None, 'file_search': None}}"
       ]
@@ -840,7 +840,7 @@
        " 'response_format': 'auto',\n",
        " 'temperature': 1.0,\n",
        " 'tool_resources': {'code_interpreter': {'file_ids': []}, 'file_search': None},\n",
-       " 'top_p': 1.0}"
+       " 'top_p': 1.0}",
        " 'tools': [{'type': 'code_interpreter'}],\n",
        " 'response_format': 'auto',\n",
        " 'temperature': 1.0,\n",
@@ -1475,7 +1475,7 @@
        " 'usage': None,\n",
        " 'temperature': 1.0,\n",
        " 'top_p': 1.0,\n",
-       " 'tool_resources': {}}"
+       " 'tool_resources': {}}",
        "    'strict': False},\n",
        "   'type': 'function'}],\n",
        " 'truncation_strategy': {'type': 'auto', 'last_messages': None},\n",
@@ -1647,7 +1647,7 @@
        " 'usage': None,\n",
        " 'temperature': 1.0,\n",
        " 'top_p': 1.0,\n",
-       " 'tool_resources': {}}"
+       " 'tool_resources': {}}",
        "    'strict': False},\n",
        "   'type': 'function'}],\n",
        " 'truncation_strategy': {'type': 'auto', 'last_messages': None},\n",