class_docstr: Unit test multi decorator Class
  TODO: Docstring
docstr: Unit test delegate 1
docstr_tok: ["Unit","test","delegate","1"]
code: def test_delegate_1(self):
      """
      Unit test delegate 1
      """
      state = MultiDecorator(DummyState())
      output = state.delegate("dummy_function", [1, 2, 3], 9)
      expected = ["1+9", "2+9", "3+9"]
      self.assertListEqual(output, expected)
  
imports: import unittest
  from unittest.mock import patch, Mock
  import numpy
  import pandas
  from shapash.explainer.multi_decorator import MultiDecorator
label_desc: Use image node_id 1 for calling the TestMultiDecorator obj's underlying member method code with example usage: obj.test_delegate_1() without return types