docs: async function transform({ datapath, filepath, inverse = false }) {
  	assert.string(datapath)
  	assert.string(filepath)
  	const data = await loadData(datapath)
  	const contextdoc = await loadData(filepath)
  	assert.object(data)
  	assert.object(contextdoc)
  	const result = new Context(contextdoc).use(viewPlugin).map(data)
  	return result
  }