def index(self, x, y):
        col, row = [math.floor(a) for a in (~self.affine * (x, y))]
        return row, col
Returns however the certificate for a
dataset/ETHPy150Open perrygeo/python-rasterstats/src/rasterstats/io.py/Raster.index--crossover with--dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/south/plugins/storage/twistedimpl/securedht/append_server.py/KademliaProtocolAppend.certificateExists