code: def test_migrate_chart_area() -> None:
      """
      Test the ``migrate_chart`` command when importing an area chart.
  
      This is currently a no-op since the migration is not complete.
      """
      chart_config = {
          "slice_name": "Birth names by state",
          "description": None,
          "certified_by": None,
          "certification_details": None,
          "viz_type": "echarts_area",
          "query_context": None,
          "params": json.dumps(
              {
                  "adhoc_filters": [
                      {
                          "clause": "WHERE",
                          "subject": "ds",
                          "operator": "TEMPORAL_RANGE",
                          "comparator": "No filter",
                          "expressionType": "SIMPLE",
                      }
                  ],
                  "annotation_layers": [],
                  "x_axis_title_margin": "auto",
                  "color_scheme": "supersetColors",
                  "comparison_type": "values",
                  "dashboards": [],
                  "datasource": "21__table",
                  "extra_form_data": {},
                  "granularity_sqla": "ds",
                  "groupby": ["state"],
                  "line_interpolation": "linear",
                  "metrics": ["count"],
                  "order_desc": True,
                  "rich_tooltip": True,
                  "rolling_type": "None",
                  "row_limit": 10000,
                  "show_brush": "auto",
                  "show_legend": True,
                  "stacked_style": "stack",
                  "time_grain_sqla": "P1D",
                  "time_range": "No filter",
                  "viz_type": "area",
                  "x_axis_format": "smart_date",
                  "x_ticks_layout": "auto",
                  "y_axis_bounds": [None, None],
                  "y_axis_format": "SMART_NUMBER",
              }
          ),
          "cache_timeout": None,
          "uuid": "ffd15af2-2188-425c-b6b4-df28aac45872",
          "version": "1.0.0",
          "dataset_uuid": "a18b9cb0-b8d3-42ed-bd33-0f0fadbf0f6d",
      }
  
      new_config = migrate_chart(chart_config)
      assert new_config == chart_config
  
imports: import json
  from superset.commands.chart.importers.v1.utils import migrate_chart
label_desc: Use image node_id 1 for calling a global function with example usage: test_migrate_chart_area() without return types