diff --git a/sumpy/tools.py b/sumpy/tools.py
index be404fe9d0dfff22117db8c76064f7ddee1fe941..32b4d3eecb0268263e2f631d17b7beacbc6d90a9 100644
--- a/sumpy/tools.py
+++ b/sumpy/tools.py
@@ -24,31 +24,25 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 """
 
-from pytools import memoize_method
-from pytools.tag import Tag, tag_dataclass
-import numbers
-import warnings
-import os
-import sys
 import enum
+import logging
+import warnings
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
+from typing import TYPE_CHECKING, Any, List, Optional, Sequence, Tuple
 
+import loopy as lp
+import numpy as np
+from arraycontext import Array
 from pymbolic.mapper import WalkMapper
-import pymbolic
+from pytools import T, memoize_method
+from pytools.tag import Tag, tag_dataclass
 
-import numpy as np
 import sumpy.symbolic as sym
-import pyopencl as cl
-import pyopencl.array as cla
-
-import loopy as lp
-from typing import Any, List, Optional, TYPE_CHECKING
-
-import logging
-logger = logging.getLogger(__name__)
 
 if TYPE_CHECKING:
+    import pyopencl as cl
+
     from sumpy.kernel import Kernel