chore: import upstream snapshot with attribution

tensorflow/lite/async/BUILD

@@ -0,0 +1,41 @@
+load("@rules_cc//cc:cc_test.bzl", "cc_test")
+
+# Description:
+#
+# This package contains shim library targets for the Async C package.
+load("//tensorflow/lite/core/shims:cc_library_with_tflite.bzl", "cc_library_with_tflite")
+
+package(
+    # copybara:uncomment default_applicable_licenses = ["//tensorflow:LICENSE"],
+    default_visibility = [
+        "//visibility:private",
+    ],
+    licenses = ["notice"],
+)
+
+cc_library_with_tflite(
+    name = "backend_async_kernel_interface",
+    srcs = ["backend_async_kernel_interface.cc"],
+    hdrs = ["backend_async_kernel_interface.h"],
+    tflite_deps = [
+        "//tensorflow/lite/async/c:async_kernel",
+        "//tensorflow/lite/async/c:types",
+        "//tensorflow/lite/c:c_api_types",
+        "//tensorflow/lite/c:common",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+cc_test(
+    name = "backend_async_kernel_interface_test",
+    srcs = ["backend_async_kernel_interface_test.cc"],
+    deps = [
+        ":backend_async_kernel_interface",
+        "//tensorflow/lite/async/c:types",
+        "//tensorflow/lite/c:c_api_types",
+        "//tensorflow/lite/c:common",
+        "//tensorflow/lite/core/async:async_kernel_internal",
+        "//tensorflow/lite/core/async/testing:mock_async_kernel",
+        "@com_google_googletest//:gtest_main",
+    ],
+)