fix: Restore hide_lines plugin with proper type annotations

docs/_hooks/hide_lines/__init__.py

@@ -0,0 +1,4 @@
+"""Hide Lines Plugin for MkDocs."""
+from .plugin import HideLinesPlugin
+
+__all__ = ['HideLinesPlugin']

docs/_hooks/hide_lines/plugin.py

@@ -0,0 +1,36 @@
+from typing import Any, Dict, List
+from mkdocs.config import Config
+from mkdocs.structure.files import Files
+from mkdocs.structure.pages import Page
+from mkdocs.plugins import BasePlugin
+
+class HideLinesPlugin(BasePlugin):
+    def on_page_markdown(self, markdown: str, page: Page, config: Config, files: Files) -> str:
+        """Process the markdown content to hide specified lines.
+
+        Args:
+            markdown: The markdown content of the page
+            page: The page object
+            config: The global configuration object
+            files: The files collection
+
+        Returns:
+            str: The processed markdown content
+        """
+        lines = markdown.split('\n')
+        result: List[str] = []
+        skip_next = False
+
+        for line in lines:
+            if skip_next:
+                skip_next = False
+                continue
+
+            if '# hide_next' in line.lower():
+                skip_next = True
+                continue
+
+            if not any(marker in line.lower() for marker in ['# hide', '<!-- hide -->']):
+                result.append(line)
+
+        return '\n'.join(result)

docs/_hooks/setup.py

@@ -0,0 +1,15 @@
+from setuptools import setup, find_packages
+
+setup(
+    name='hide_lines',
+    version='0.1',
+    packages=find_packages(),
+    entry_points={
+        'mkdocs.plugins': [
+            'hide_lines = hide_lines.plugin:HideLinesPlugin',
+        ]
+    },
+    install_requires=[
+        'mkdocs>=1.0.4'
+    ]
+)