code: def make_caret(self):
      self.__caret = wx.Caret(
          self, wx.Size(1, self.Size[1] - 2 * self.padding)
      )
  
imports: import wx
  import wx.lib.masked
  from cellprofiler_core.constants.measurement import C_FRAME
  from cellprofiler_core.constants.measurement import C_METADATA
  from cellprofiler_core.constants.measurement import C_SERIES
  from cellprofiler_core.constants.measurement import IMAGE
  from cellprofiler_core.preferences import get_primary_outline_color
label_desc: Use image node_id 3 for calling the MetadataControl obj's underlying member method code with example usage: obj.make_caret() without return types