{"id":"treenode-defined-in-multiple-files","text":"`TreeNode` is defined locally in multiple solution files (`same-tree/solution.py`, `root-equals-sum-of-children/solution.py`, and likely others) rather than in a single shared location.","truth_value":"IN","source":"entries/2026/06/06/root-equals-sum-of-children-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"treenode-defined-in-multiple-files","truth_value":"IN","reason":"premise"}]}}