code: def test_concave_hull_kwargs():
      p = Point(10, 10)
      mp = MultiPoint(
          p.buffer(5).exterior.coords[:]
          + p.buffer(4).exterior.coords[:]
      )
  
      result1 = shapely.concave_hull(mp, ratio=0.5)
      assert len(result1.interiors) == 0
      result2 = shapely.concave_hull(mp, ratio=0.5, allow_holes=True)
      assert len(result2.interiors) == 1
  
      result3 = shapely.concave_hull(mp, ratio=0)
      result4 = shapely.concave_hull(mp, ratio=1)
      assert shapely.get_num_coordinates(
          result4
      ) < shapely.get_num_coordinates(result3)
  
imports: import numpy
  import pytest
  import shapely
  from shapely import Geometry, GeometryCollection, GEOSException, LinearRing, LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon
  from shapely.testing import assert_geometries_equal
  from shapely.tests.common import all_types, empty, empty_line_string, empty_point, empty_polygon, ignore_invalid, line_string, multi_point, point, point_z
label_desc: Use image node_id 54 for calling a global function with example usage: test_concave_hull_kwargs() without return types