def create_donut():
"""Add a donut, and return data about the new donut.
Return JSON like:
{donut: [{id, flavor, rating, size, image}]}
"""
data = request.json
donut = Donut(
flavor=data['flavor'],
rating=data['rating'],
size=data['size'],
image=data['image'] or None,
)
db.session.add(donut)
db.session.commit()
return (jsonify(donut=donut.to_dict()), 201)
