def isDoubleClick(self):
        return self._details.isDoubleClick()
Regression test for https://github.com/astropy/astropy/issues/2463
dataset/ETHPy150Open rwl/muntjac/muntjac/event/mouse_events.py/ClickEvent.isDoubleClick--crossover with--dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/tests/test_core.py/TestFileFunctions.test_write_stringio