2.8 texture_slots?

What is the equivalent of material.texture_slots for v2.8 and how to get it?

Where did all of this information go for v2.8?
https://docs.blender.org/api/2.79/bpy.types.MaterialTextureSlot.html

I also have a request for a cheat sheet on how to access material and texture data for v2.8 as it was for v2.79. Or maybe some doc that explains where every single data type has been moved to.
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