assistant
[STOP — input validation missing]
- template is a string, but what if it contains a placeholder that is never closed?
- What if a placeholder has an empty name (e.g. "{}")?
- What if a placeholder has a name that is not alphanumeric or underscore?
- What if a placeholder has a name that is not in the values dict?
- What if a placeholder has a name that is not in the values dict?
- What if a placeholder has a name that is not in the values dict?