code: def test_one_ohlc_decrease(self):
      # This should create one "increase" (i.e. close > open) ohlc stick
  
      ohlc_decr = ff.create_ohlc(
          open=[33.0],
          high=[33.2],
          low=[30.7],
          close=[31.1],
          direction="decreasing",
      )
  
      expected_ohlc_decr = {
          "data": [
              {
                  "line": {"color": "#FF4136", "width": 1},
                  "mode": "lines",
                  "name": "Decreasing",
                  "showlegend": False,
                  "text": [
                      "Open",
                      "Open",
                      "High",
                      "Low",
                      "Close",
                      "Close",
                      "",
                  ],
                  "type": "scatter",
                  "x": [-0.2, 0, 0, 0, 0, 0.2, None],
                  "y": [33.0, 33.0, 33.2, 30.7, 31.1, 31.1, None],
              }
          ],
          "layout": {
              "hovermode": "closest",
              "xaxis": {"zeroline": False},
          },
      }
  
      self.assert_fig_equal(
          ohlc_decr["data"][0], expected_ohlc_decr["data"][0]
      )
      self.assert_fig_equal(
          ohlc_decr["layout"], expected_ohlc_decr["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 7 for calling the TestFinanceCharts obj's underlying member method code with example usage: obj.test_one_ohlc_decrease() without return types