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Migrations and Schema Changes

After creating or modifying Ash code, run mix ash.codegen <short_name_describing_changes> to ensure any required additional changes are made (like migrations are generated). The name of the migration should be lower_snake_case. In a longer running dev session it's usually better to use mix ash.codegen --dev as you go and at the end run the final codegen with a sensible name describing all the changes made in the session.