code: def geom_type(cls, dataset):
      from shapely.geometry import (
          Polygon,
          MultiPolygon,
          LineString,
          MultiLineString,
          LinearRing,
      )
  
      geom = dataset.data["geometry"]
      if isinstance(geom, (Polygon, MultiPolygon)):
          return "Polygon"
      elif isinstance(geom, LinearRing):
          return "Ring"
      elif isinstance(geom, (LineString, MultiLineString)):
          return "Line"
      else:
          return "Point"
  
imports: import sys
  from collections import OrderedDict
  import numpy
  from holoviews.core.data import Interface, DictInterface, MultiInterface
  from holoviews.core.data.interface import DataError
  from holoviews.core.data.spatialpandas import to_geom_dict
  from holoviews.core.dimension import dimension_name
  from holoviews.core.util import isscalar
  from ..util import asarray, geom_types, geom_to_array, geom_length
label_desc: Use image node_id 5 for calling the GeomDictInterface obj's underlying member method code with example usage: obj.geom_type(cls, dataset) and returns: str, str, str, str