checklist.txt 1. Add classes for the op to src/ngraph/op 2. Add the op to src/ngraph/op/op_tbl.hpp 3. Add a reference kernel to src/runtime/reference 4. Add a call to the reference kernel to src/interpreter/int_backend.hpp 5. Add the header for the op class to src/ngraph/ngraph.hpp 6. Add serializer *and* deserializer support to src/ngraph/serializer.cpp 7. Add type propagation tests to test/type_prop.cpp 8. Add execution tests to test/backend_test.in.cpp 9. Update unit test manifests for non-INTERPRETER backends (CPU, GPU, INTELGPU) to exclude your new execution tests (Or, if you know what you're doing, update those backends to support your new op.) 10. Add .rst files documenting the op to doc/sphinx/source/ops 11. Add links to your new doc files to doc/sphinx/source/ops/index.rst