code: def test_migration() -> None:
      SOURCE_FORM_DATA.update(TIMESERIES_SOURCE_FORM_DATA)
      TARGET_FORM_DATA.update(TIMESERIES_TARGET_FORM_DATA)
      migrate_and_assert(
          MigrateAreaChart, SOURCE_FORM_DATA, TARGET_FORM_DATA
      )
  
imports: from typing import Any
  from superset.migrations.shared.migrate_viz import MigrateAreaChart
  from tests.unit_tests.migrations.viz.utils import migrate_and_assert, TIMESERIES_SOURCE_FORM_DATA, TIMESERIES_TARGET_FORM_DATA
label_desc: Use image node_id 1 for calling a global function with example usage: test_migration() without return types