class_docstr: Dummy State Class
  TODO: Docstring
docstr: Dummy function
  TODO: Docstring
  Parameters
  ----------
  xparam : [type]
      [description]
  yparam : [type]
      [description]
  Returns
  -------
  [type]
      [description]
docstr_tok: ["Dummy","function","TODO",":","Docstring","Parameters","--","--","--","--","--","xparam",":","[","type","]","[","description","]","yparam",":","[","type","]","[","description","]","Returns","--","--","--","-","[","type","]","[","description","]"]
code: def dummy_function(self, xparam, yparam):
      """
      Dummy function
      TODO: Docstring
      Parameters
      ----------
      xparam : [type]
          [description]
      yparam : [type]
          [description]
      Returns
      -------
      [type]
          [description]
      """
      return "+".join([str(xparam), str(yparam)])
  
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 2 for calling the DummyState obj's underlying member method code with example usage: obj.dummy_function(xparam, yparam) and returns: str