I am done

rl/Lib/site-packages/onnx/reference/ops/op_bitshift.py

@@ -0,0 +1,17 @@
+# Copyright (c) ONNX Project Contributors
+
+# SPDX-License-Identifier: Apache-2.0
+from __future__ import annotations
+
+import numpy as np
+
+from onnx.reference.ops._op import OpRunBinaryNumpy
+
+
+class BitShift(OpRunBinaryNumpy):
+    def __init__(self, onnx_node, run_params):  # type: ignore
+        OpRunBinaryNumpy.__init__(self, np.right_shift, onnx_node, run_params)
+        if self.direction not in ("LEFT", "RIGHT"):  # type: ignore
+            raise ValueError(f"Unexpected value for direction ({self.direction!r}).")  # type: ignore
+        if self.direction == "LEFT":  # type: ignore
+            self.numpy_fct = np.left_shift