code: def test_asset_hash_and_eq():
      a = b = Asset()
      c = Asset()
  
      assert hash(a)
      assert hash(a) == hash(b)
      assert hash(a) != hash(c)
      assert a == a == b
      assert a != c
  
imports: import re
  import pytest
  import numpy
  from numpy.testing import assert_allclose
  import pyquaternion
  from traitlets import TraitError
  from unittest import mock
  from kubric.core import Asset
  from kubric.core import UndefinedAsset
  from kubric.core import objects
  from kubric.core import materials
label_desc: Use image node_id 7 for calling a global function with example usage: test_asset_hash_and_eq() without return types