Quickstart fixes (#3227)

* Replace zenml connect in quickstart

* Linting

examples/quickstart/quickstart.ipynb

@@ -149,7 +149,7 @@
         "\n",
         "assert zenml_server_url\n",
         "\n",
-        "!zenml connect --url $zenml_server_url"
+        "!zenml login $zenml_server_url"
       ]
     },
     {
@@ -722,14 +722,6 @@
         "* If you have questions or feedback... join our [**Slack Community**](https://zenml.io/slack) and become part of the ZenML family!\n",
         "* If you want to quickly get started with ZenML, check out [ZenML Pro](https://zenml.io/pro)."
       ]
-    },
-    {
-      "cell_type": "code",
-      "execution_count": null,
-      "id": "c560354d-9e78-4061-aaff-2e6213229911",
-      "metadata": {},
-      "outputs": [],
-      "source": []
     }
   ],
   "metadata": {

src/zenml/materializers/built_in_materializer.py

@@ -414,11 +414,9 @@ def save(self, data: Any) -> None:
             for entry in metadata:
                 self.artifact_store.rmtree(entry["path"])
             raise e
-        
+
     # save dict type objects to JSON file with JSON visualization type
-    def save_visualizations(
-        self, data: Any
-    ) -> Dict[str, "VisualizationType"]:
+    def save_visualizations(self, data: Any) -> Dict[str, "VisualizationType"]:
         """Save visualizations for the given data.
 
         Args:
@@ -428,7 +426,7 @@ def save_visualizations(
             A dictionary of visualization URIs and their types.
         """
         # dict/list type objects are always saved as JSON files
-        # doesn't work for non-serializable types as they 
+        # doesn't work for non-serializable types as they
         # are saved as list of lists in different files
         if _is_serializable(data):
             return {self.data_path: VisualizationType.JSON}

src/zenml/types.py

@@ -34,5 +34,6 @@ class MarkdownString(str):
 class CSVString(str):
     """Special string class to indicate a CSV string."""
 
+
 class JSONString(str):
     """Special string class to indicate a JSON string."""

src/zenml/utils/visualization_utils.py

@@ -16,7 +16,7 @@
 import json
 from typing import TYPE_CHECKING, Optional
 
-from IPython.core.display import HTML, Image, JSON, Markdown, display
+from IPython.core.display import HTML, JSON, Image, Markdown, display
 
 from zenml.artifacts.utils import load_artifact_visualization
 from zenml.enums import VisualizationType