code: def multilinestrings(multipolygons):
      return multipolygons.boundary
  
file_path: geopandas/geopandas/tools/tests/test_random.py
imports: import pytest
  import numpy
  import geopandas
  from geopandas.tools._random import uniform
label_desc: Use image node_id 3 for calling a global function with example usage: multilinestrings(multipolygons) and returns: multipolygons