def childSearchPreauth(self, *paths):
        p = self.path
        for child in paths:
            jp = joinpath(p, child)
            if exists(jp):
                return self.clonePath(jp)
Return my first existing child with a name in 'paths'.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/filepath.py/FilePath.childSearchPreauth