Remove references to "pickle" file and simply use "output" file

tracetools_analysis/analysis/callback_duration.ipynb

@@ -17,8 +17,8 @@
     "#\n",
     "# OR\n",
     "#\n",
-    "# Use the provided sample pickle file, changing the path below to:\n",
-    "#    'sample_data/pickle_pingpong'"
+    "# Use the provided sample converted trace file, changing the path below to:\n",
+    "#    'sample_data/converted_pingpong'"
    ]
   },
   {
@@ -27,8 +27,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "pickle_path = '~/.ros/tracing/pingpong/ust/pickle'\n",
-    "#pickle_path = 'sample_data/pickle_pingpong'"
+    "converted_file_path = '~/.ros/tracing/pingpong/ust/converted'\n",
+    "#converted_file_path = 'sample_data/converted_pingpong'"
    ]
   },
   {
@@ -57,7 +57,7 @@
     "import pandas as pd\n",
     "\n",
     "from tracetools_analysis import utils\n",
-    "from tracetools_analysis.loading import load_pickle\n",
+    "from tracetools_analysis.loading import load_file\n",
     "from tracetools_analysis.processor.ros2 import Ros2Handler"
    ]
   },
@@ -68,8 +68,8 @@
    "outputs": [],
    "source": [
     "# Process\n",
-    "pickle_path = os.path.expanduser(pickle_path)\n",
-    "events = load_pickle(pickle_path)\n",
+    "converted_file_path = os.path.expanduser(converted_file_path)\n",
+    "events = load_file(converted_file_path)\n",
     "handler = Ros2Handler.process(events)\n",
     "#handler.data.print_model()"
    ]