In the language practices that are used in my country, there is a clear division of types of curtains and this is used in everyday life. It is impossible to implement the correct interaction with the Assist without renaming (in intents) another class for this task (shades, for example). But this is the wrong way, someone may need exactly shades.
The simplest solution would be to add a new type. Moreover, this division of curtains is also present in English.
Example of use:
