Fix some type errors

src/ini2toml/drivers/full_toml.py

@@ -124,11 +124,9 @@ def _collapse_irepr(obj: IntermediateRepr, root=False):
         v and isinstance(v, (list, Mapping, UserList)) or isinstance(k, CommentKey)
         for k, v in obj.items()
     ):
-        out = table()
+        return _convert_irepr_to_toml(obj, table())
     else:
-        out = inline_table()
-
-    return _convert_irepr_to_toml(obj, out)
+        return _convert_irepr_to_toml(obj, inline_table())
 
 
 @collapse.register(dict)

src/ini2toml/plugins/setuptools_pep621.py

@@ -14,6 +14,7 @@
     Type,
     TypeVar,
     Union,
+    cast,
 )
 
 from packaging.requirements import Requirement
@@ -299,7 +300,7 @@ def merge_and_rename_long_description_and_content_type(self, doc: R) -> R:
         if len(list(readme.keys())) == 1 and "file" in readme:
             metadata["long-description"] = readme["file"]
         else:
-            metadata["long-description"] = IR(readme)
+            metadata["long-description"] = IR(readme)  # type: ignore[arg-type]
         metadata.rename("long-description", "readme")
         return doc
 
@@ -325,6 +326,7 @@ def merge_license_and_files(self, doc: R) -> R:
             return doc
 
         if files_as_list:
+            files = cast(CommentedList[str], files)
             license = IR(file=Commented(files_as_list[0], files[0].comment))
         elif "license" in metadata:
             license = IR(text=metadata["license"])