code: def test_init_in_figure_constructor(self):
      fig = go.Figure(
          layout={
              "template": {
                  "layout": {"title": {"text": "Hello, world"}}
              }
          }
      )
  
      self.assertEqual(
          fig.layout.template,
          go.layout.Template(
              layout={"title": {"text": "Hello, world"}}
          ),
      )
  
      self.assertEqual(
          fig.to_dict(),
          {
              "data": [],
              "layout": {
                  "template": {
                      "layout": {"title": {"text": "Hello, world"}}
                  }
              },
          },
      )
  
imports: import copy
  from unittest import TestCase
  import pytest
  import plotly.io
  import plotly.graph_objs
  from plotly.tests.utils import TestCaseNoTemplate
label_desc: Use image node_id 4 for calling the TemplateTest obj's underlying member method code with example usage: obj.test_init_in_figure_constructor() without return types