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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _justDisplay(self, tool):
 """ Displays the given tool. Does not register it in the tools list. """

        self.header.title.set_text(tool.name)

        body, _options = self.widget.contents["body"]
        overlay = urwid.Overlay(tool.widget, body, *tool.position)
        self._surface = urwid.AttrMap(overlay, "foreground")
        self.widget.contents["body"] = self._surface, None