Identify files in the Dify codebase where `| None` is used in type annotations. For each occurrence, evaluate whether providing a default value or removing the union is feasible. Check existing coding patterns in similar types. No specific files mentioned in the issue, so a broad search is needed. The issue has an assignee, so coordinate with them before starting work.
try clean the unnecessary | None in code · langgenius/dify#35557 | Good First Issue