code: def test_contains(self):
      # Primitive property
      self.assertTrue("name" in self.parcoords)
  
      # Compound property
      self.assertTrue("line" in self.parcoords)
  
      # Literal
      self.assertTrue("type" in self.parcoords)
  
      # Compound array property
      self.assertTrue("dimensions" in self.parcoords)
  
      # Bogus
      self.assertFalse("bogus" in self.parcoords)
  
imports: from unittest import TestCase
  import plotly.graph_objs
  import pytest
label_desc: Use image node_id 2 for calling the TestPropertyIterContains obj's underlying member method code with example usage: obj.test_contains() without return types