code: def test_valid_multilinestring(self):
      ls1 = [(3.75, 9.25), (-130.95, 1.52)]
      ls2 = [(23.15, -34.25), (-1.35, -4.65), (3.45, 77.95)]
      mls = geojson.MultiLineString([ls1, ls2])
      self.assertEqual(mls.is_valid, True)
  
imports: import unittest
  import geojson
label_desc: Use image node_id 2 for calling the TestValidationMultiLineString obj's underlying member method code with example usage: obj.test_valid_multilinestring() without return types