code: def on_show(self, event):
      self.canvas.show()
      event.Skip()
  
file_path: vispy/examples/tutorial/app/simple_wx.py
imports: import wx
  import math
  from vispy import app, gloo
label_desc: Use image node_id 3 for calling the TestFrame obj's underlying member method code with example usage: obj.on_show(event) without return types