Stylistic Alternates within Photoshop Script

Is there possibly a way to set the stylistic set, or set stylistic alternates to true within a photoshop script? I've written a script to read a .txt file, write each line within it on an image and export, however I need to use single decker lower case a's rather than double decker a's <--- these type. In photoshop I can select the stylistic alternates in the text panel properties, but I need a way of doing this in script. Any ideas how to change this?