code: def test_one_candlestick(self):
      # This should create one "increase" (i.e. close > open) candlestick
  
      can_inc = ff.create_candlestick(
          open=[33.0], high=[33.2], low=[32.7], close=[33.1]
      )
  
      exp_can_inc = {
          "data": [
              {
                  "boxpoints": False,
                  "fillcolor": "#3D9970",
                  "line": {"color": "#3D9970"},
                  "name": "Increasing",
                  "showlegend": False,
                  "type": "box",
                  "whiskerwidth": 0,
                  "x": [0, 0, 0, 0, 0, 0],
                  "y": [32.7, 33.0, 33.1, 33.1, 33.1, 33.2],
              },
              {
                  "boxpoints": False,
                  "fillcolor": "#ff4136",
                  "line": {"color": "#ff4136"},
                  "name": "Decreasing",
                  "showlegend": False,
                  "type": "box",
                  "whiskerwidth": 0,
                  "x": [],
                  "y": [],
              },
          ],
          "layout": {},
      }
  
      self.assert_fig_equal(can_inc["data"][0], exp_can_inc["data"][0])
      self.assert_fig_equal(can_inc["layout"], exp_can_inc["layout"])
  
imports: import math
  from unittest import TestCase
  import datetime
  import plotly.figure_factory
  import plotly.io
  from plotly.exceptions import PlotlyError
  from plotly.tests.test_optional.optional_utils import NumpyTestUtilsMixin
  from plotly.graph_objs import graph_objs
  from plotly.tests.utils import TestCaseNoTemplate
label_desc: Use image node_id 8 for calling the TestFinanceCharts obj's underlying member method code with example usage: obj.test_one_candlestick() without return types