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Megan . Libertad . Valeria . Fran } do: [:p | p isAttending: true ]` in the Playground.\n- Evaluate it: select it and right-click -\u003e `Do it` (or Ctrl-d)\n- Write `JoseSL start_jam_session` and evaluate it as before.\n\n# Assignment\n\nTry to describe in your own words the definition of the following terms:\n- message\n- class\n- object\n- test\n- closure\n- randori\n- tdd\n- boolean\n- collection\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fosoco%2Fpharo-jam-session-advent-of-code-1","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fosoco%2Fpharo-jam-session-advent-of-code-1","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fosoco%2Fpharo-jam-session-advent-of-code-1/lists"}