module is source flag to ensure for single source modules it's not treated as a module but root

docforge/renderers/mkdocs_renderer.pyi

@@ -1,19 +1,23 @@
 from pathlib import Path
-from typing import Set
-
 from docforge.models import Project, Module
 
 
 class MkDocsRenderer:
     name: str
 
-    def generate_sources(self, project: Project, out_dir: Path) -> None: ...
+    def generate_sources(
+        self,
+        project: Project,
+        out_dir: Path,
+        module_is_source: bool | None = None,
+    ) -> None: ...
 
     def _write_module(
         self,
         module: Module,
-        packages: Set[str],
+        packages: set[str],
         out_dir: Path,
+        module_is_source: bool | None = None,
     ) -> None: ...
 
     def _render_markdown(self, title: str, module_path: str) -> str: ...