<https://dev.to/focusedlabs/three-lines-of-typescript-with-jest-to-get-typesafe-mocks-3idj>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://dev.to/focusedlabs/three-lines-of-typescript-with-jest-to-get-typesafe-mocks-3idj>