How to refer to Bioschemas profiles in markup

Hi Alasdair, all,

We are working on the examples for TrainingMaterial whose official
schema.org type is CreativeWork.

What type should I use in the markup? Some options are:
"@type": ["CreativeWork", "bioschemas:TrainingMaterial"] #but schema.org
has no idea about bioschemas:TrainingMaterial
"@type": ["CreativeWork", "TrainingMaterial"] #but schema.org has no idea
about TrainingMaterial
"@type": "CreativeWork" #but then, how would Bioschemas know this is a
TrainingMaterial?

Is there anything that should be added to the context for pages using the
TrainingMaterial profile so "bioschemas" namespace is valid?

Please advise.

Kind regards,