code: def test_col_delete(self):
      grids.col_delete("hodor:88", "aaaaaa,bbbbbb")
      assert self.request_mock.call_count == 1
      args, kwargs = self.request_mock.call_args
      method, url = args
      self.assertEqual(method, "delete")
      self.assertEqual(
          url, "{}/v2/grids/hodor:88/col".format(self.plotly_api_domain)
      )
      self.assertEqual(kwargs["params"], {"uid": "aaaaaa,bbbbbb"})
  
imports: from __future__ import absolute_import
  import json
  from chart_studio.api.v2 import grids
  from chart_studio.tests.test_plot_ly.test_api import PlotlyApiTestCase
label_desc: Use image node_id 13 for calling the GridsTest obj's underlying member method code with example usage: obj.test_col_delete() without return types