Try to fix type annotation issue

app.py

@@ -1,5 +1,7 @@
 # HF space creator starting from an sklearn model
 
+from __future__ import annotations
+
 import base64
 import glob
 import io
@@ -161,7 +163,7 @@ def _create_model_card():
                 continue
 
             if key.startswith(PLOT_PREFIX):
-                key = key[len(PLOT_PREFIX):]
+                key = key[len(PLOT_PREFIX) :]  # noqa
                 model_card.add_plot(**{key: val})
             else:
                 model_card.add(**{key: val})
@@ -185,7 +187,7 @@ def _process_card_for_rendering(rendered: str) -> tuple[str, str]:
         # ![Test image](images/test.png "Alternate text")
         images = re.findall(
             r'(!\[(?P<image_title>[^\]]+)\]\((?P<image_path>[^\)"\s]+)\s*([^\)]*)\))',
-            markdown
+            markdown,
         )
         return images
 
@@ -211,7 +213,9 @@ def _process_card_for_rendering(rendered: str) -> tuple[str, str]:
             image_markdown = image[0]
             image_alt = image[1]
             image_path = image[2]
-            markdown = markdown.replace(image_markdown, img_to_html(image_path, image_alt))
+            markdown = markdown.replace(
+                image_markdown, img_to_html(image_path, image_alt)
+            )
         return markdown
 
     rendered_with_img = markdown_insert_images(rendered)
@@ -354,13 +358,9 @@ with left_col:
             " plot')",
             key="key_plot_name",
         )
-        plot_file = st.file_uploader(
-            "Upload a figure*", key="key_plot_file"
-        )
+        plot_file = st.file_uploader("Upload a figure*", key="key_plot_file")
 
-        submit_new_plot = st.form_submit_button(
-            "Add plot", on_click=add_custom_plot
-        )
+        submit_new_plot = st.form_submit_button("Add plot", on_click=add_custom_plot)
 
     _load_custom_section_cache()
     for key in custom_sections:
@@ -369,7 +369,9 @@ with left_col:
 
         if key.startswith(PLOT_PREFIX):
             st.button(
-                f"Remove plot '{key[len(PLOT_PREFIX):]}'", on_click=_remove_custom_section, args=(key,)
+                f"Remove plot '{key[len(PLOT_PREFIX):]}'",
+                on_click=_remove_custom_section,
+                args=(key,),
             )
         else:
             st.button(