code: def make_multipolygon_boundary(
      coordinates: GJMultipolygon,
  ) -> Multipolygon:
      return Multipolygon(
          [make_polygon_boundary(poly) for poly in coordinates]
      )
  
imports: import json
  from typing import List, Union, Callable, Any
  import shapely
  from geopandas import GeoDataFrame
  from shapely.geometry import Point
  from lets_plot.geo_data import DF_COLUMN_ID, DF_COLUMN_FOUND_NAME, DF_COLUMN_COUNTY, DF_COLUMN_STATE, DF_COLUMN_COUNTRY
  from lets_plot.geo_data.geocodes import Geocodes
  from lets_plot.geo_data.gis.geometry import Ring, Polygon, Multipolygon
  from lets_plot.geo_data.gis.json_response import ResponseField, GeometryKind
  from lets_plot.geo_data.gis.request import RegionQuery
  from lets_plot.geo_data.gis.response import Answer, GeocodedFeature, FeatureBuilder, LevelKind, Status, GeoRect, GeoPoint, Response, SuccessResponse, AmbiguousResponse, ErrorResponse, ResponseBuilder
label_desc: Use image node_id 15 for calling a global function with example usage: make_multipolygon_boundary(coordinates) and returns: Multipolygon