docs/intro_observationbuilder.rst

examples/custom_observation_example.py

examples/debugging_example_DELETE.py

flatland/core/env.py

flatland/envs/observations.py

flatland/envs/rail_env.py

tests/test_distance_map.py

tests/test_flatland_envs_observations.py

tests/test_flatland_envs_predictions.py

tests/test_flatland_malfunction.py

tests/tests_generators.py