.

Author: codegen-bot

src/codegen/sdk/core/codebase.py

@@ -224,6 +224,9 @@ def files(self, *, extensions: list[str] | Literal["*"] | None = None) -> list[T
         if extensions is None:
             # Return all source files
             files = self.G.get_nodes(NodeType.FILE)
+        elif isinstance(extensions, str) and extensions != "*":
+            print("HERE")
+            raise ValueError("extensions must be a list of extensions or '*'")
         else:
             files = []
             # Get all files with the specified extensions