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diff --git a/tensorflow/python/autograph/utils/type_check.py b/tensorflow/python/autograph/utils/type_check.py
new file mode 100644
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+++ b/tensorflow/python/autograph/utils/type_check.py
@@ -0,0 +1,33 @@
+# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+"""Utilities used in autograph-generated code."""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from tensorflow.python.framework import tensor_util
+
+
+def is_tensor(*args):
+  """Check if any arguments are tensors.
+
+  Args:
+    *args: Python objects that may or may not be tensors.
+
+  Returns:
+    True if any *args are TensorFlow types, False if none are.
+  """
+  return any([tensor_util.is_tensor(a) for a in args])