$resetUserVar restores a user-scoped variable to its default value, or removes the stored value entirely if no default is defined in the Bot Creator Variables UI. It performs a resetScopedVariable action with scope user.

When called with only a name, it resets the variable for the current command author. When a User ID is provided, it resets the variable for that specific user.

This function is useful for seasonal resets, clearing temporary data, or reverting a user’s settings to their defaults. After resetting, subsequent calls to $getUserVar will return the default value (if defined) or an empty string. This function does not return any output.