class_docstr: Unit test multi decorator Class
  TODO: Docstring
docstr: Unit test check contributions 1
docstr_tok: ["Unit","test","check","contributions","1"]
code: def test_check_contributions_1(self):
      """
      Unit test check contributions 1
      """
      backend = Mock()
      backend.check_contributions = Mock(side_effect=[True, True, True])
      state = MultiDecorator(backend)
      output = state.check_contributions([1, 2, 3], Mock())
      assert output
  
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 7 for calling the TestMultiDecorator obj's underlying member method code with example usage: obj.test_check_contributions_1() without return types