Fix UnboundLocalError

✅ Solution

The "UnboundLocalError" occurs when a local variable is referenced before it has been assigned a value within its scope, often in conditional blocks. To fix it, ensure the variable is always assigned a default value (e.g., `metadata = None`) before the conditional block where it might be used, guaranteeing it's initialized regardless of the execution path. This prevents the error if the specific condition that would have originally assigned the value is not met.