def set_tab(self): # <ESC>H
        r, c = self.cursor()
        bisect.insort_right(self._tabs, c)
Uses the Singleton pattern, so that we can have subclasses
dataset/ETHPy150Open kdart/pycopia/QA/pycopia/terminal.py/Screen.set_tab--crossover with--dataset/ETHPy150Open gengo/decanter/decanter/lib/loaders.py/BaseLoader.__init__