code: def test_copy_from(self):
      scope = activity.Scope(None)
      scope.modified.add(QN("foo"))
      other = activity.Scope(None)
      other.copy_from(scope)
  
      self.assertWriteOnly(QN("foo"), other)
  
      scope.modified.add(QN("bar"))
      scope.copy_from(other)
  
      self.assertMissing(QN("bar"), scope)
  
imports: import gast
  from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import naming
  from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.autograph.pyct import transformer
  from tensorflow.python.autograph.pyct.static_analysis import activity
  from tensorflow.python.autograph.pyct.static_analysis import annos
  from tensorflow.python.platform import test
label_desc: Use image node_id 5 for calling the ScopeTest obj's underlying member method code with example usage: obj.test_copy_from() without return types