How to I add alpha to textures when importing .glf files?

How do I…

I would like to import models that have transparent textures.

What is the expected result

when exported, the model appears “correct” with alpha channels. when importing the .glf file back into blender the transparency works as normal. I would also like to be able to disable backface culling if possible.

What is the actual result

When imported, models have black boxes where they should be transparent as marked by the texture.

Related screenshots

Screenshot 2023-07-15 121331