class_docstr: The JoinerController managers a joiner setting
class_docstr_tok: ["The","JoinerController","managers","a","joiner","setting"]
docstr: Names of the entities in alphabetical order
docstr_tok: ["Names","of","the","entities","in","alphabetical","order"]
code: def column_names(self):
      """Names of the entities in alphabetical order"""
      return sorted(self.v.entities.keys())
  
imports: import wx
  import wx.lib.rcsizer
  from ._module_view import ModuleView
  from ..utilities.module_view import edit_control_name
label_desc: Use image node_id 9 for calling the JoinerController obj's underlying member method code with example usage: obj.column_names() and returns: sorted