docs/specifications/core.md

docs/tutorials/01_gettingstarted.rst

docs/tutorials/02_observationbuilder.rst

examples/complex_rail_benchmark.py

...custom_observation_example_02_SingleAgentNavigationObs.py

examples/custom_observation_example_03_ObservePredictions.py

examples/debugging_example_DELETE.py

examples/flatland_2_0_example.py

examples/training_example.py

flatland/cli.py

flatland/core/env.py

tests/test_flatland_envs_observations.py