(value)
| 428 | component_ids = set() |
| 429 | |
| 430 | def _validate(value): |
| 431 | def _validate_id(comp): |
| 432 | component_id = stringify_id(getattr(comp, "id", None)) |
| 433 | if component_id and component_id in component_ids: |
| 434 | raise exceptions.DuplicateIdError( |
| 435 | f""" |
| 436 | Duplicate component id found in the initial layout: `{component_id}` |
| 437 | """ |
| 438 | ) |
| 439 | component_ids.add(component_id) |
| 440 | |
| 441 | _validate_id(value) |
| 442 | |
| 443 | for component in value._traverse(): # pylint: disable=protected-access |
| 444 | _validate_id(component) |
| 445 | |
| 446 | if isinstance(layout_value, (list, tuple)): |
| 447 | for component in layout_value: |
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