How to use

extra

function

in

Array

it('Bone.attribute(name, meta) sets column meta, should not be public', async function() {
  Post.attribute('extra', { type: String });
  expect(Post.attributes.extra.jsType).to.eql(String);
  Post.attribute('extra', { type: JSON });
  expect(() => Post.attribute('missing', { type: JSON })).to.throwException();
 });