code: def GetColLabelValue(self, col):
      return self.v.column_names[col]
  
imports: import wx
  import wx.grid
  from cellprofiler_core.preferences import get_error_color
  from cellprofiler_core.setting import Table
label_desc: Use image node_id 13 for calling the TableController obj's underlying member method code with example usage: obj.GetColLabelValue(col) and returns: self