Deprecate `cupy.sparse` package
+import warnings
+
+warnings.warn(
+ 'cupy.sparse is deprecated. Use cupyx.scipy.sparse instead.',
+ DeprecationWarning)
+
from cupyx.scipy.sparse.base import issparse # NOQA
from cupyx.scipy.sparse.base import isspmatrix # NOQA
from cupyx.scipy.sparse.base import spmatrix # NOQA
