Gets the device from a list of CuPy array or a single CuPy array.

The device on which the given CuPy array reside is returned.

Parameters:array (cupy.ndarray or list of cupy.ndarray) – A CuPy array which this function returns the device corresponding to. If a list of cupy.ndarray s are given, it returns the first device object of an array in the list.