chore: import upstream snapshot with attribution

tensorflow/lite/async/c/BUILD

@@ -0,0 +1,45 @@
+# This package contains shim library targets for the Async C package,
+# that forward to the TF Lite C and C++ API targets.
+
+load("//tensorflow/lite:build_def.bzl", "tflite_copts", "tflite_copts_warnings")
+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 = "task",
+    hdrs = ["task.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/async/c:task"],
+)
+
+cc_library_with_tflite(
+    name = "types",
+    hdrs = ["types.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/async/c:types"],
+)
+
+cc_library_with_tflite(
+    name = "async_signature_runner",
+    hdrs = ["async_signature_runner.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/async/c:async_signature_runner"],
+)
+
+cc_library_with_tflite(
+    name = "async_kernel",
+    hdrs = ["async_kernel.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/async/c:async_kernel"],
+)

tensorflow/lite/async/c/async_kernel.h

@@ -0,0 +1,20 @@
+/* Copyright 2023 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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ASYNC_C_ASYNC_KERNEL_H_
+#define TENSORFLOW_LITE_ASYNC_C_ASYNC_KERNEL_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/async/c/async_kernel.h.
+
+#include "tensorflow/lite/core/async/c/async_kernel.h"  // IWYU pragma: export
+
+#endif  // TENSORFLOW_LITE_ASYNC_C_ASYNC_KERNEL_H_

tensorflow/lite/async/c/async_signature_runner.h

@@ -0,0 +1,20 @@
+/* Copyright 2023 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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ASYNC_C_ASYNC_SIGNATURE_RUNNER_H_
+#define TENSORFLOW_LITE_ASYNC_C_ASYNC_SIGNATURE_RUNNER_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/async/c/async_signature_runner.h.
+
+#include "tensorflow/lite/core/async/c/async_signature_runner.h"  // IWYU pragma: export
+
+#endif  // TENSORFLOW_LITE_ASYNC_C_ASYNC_SIGNATURE_RUNNER_H_

tensorflow/lite/async/c/task.h

@@ -0,0 +1,21 @@
+
+/* Copyright 2023 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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ASYNC_C_TASK_H_
+#define TENSORFLOW_LITE_ASYNC_C_TASK_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/async/c/task.h.
+
+#include "tensorflow/lite/core/async/c/task.h"  // IWYU pragma: export
+
+#endif  // TENSORFLOW_LITE_ASYNC_C_TASK_H_

tensorflow/lite/async/c/types.h

@@ -0,0 +1,20 @@
+/* Copyright 2023 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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ASYNC_C_TYPES_H_
+#define TENSORFLOW_LITE_ASYNC_C_TYPES_H_
+
+/// For documentation, see
+/// tensorflow/lite/core/async/c/types.h.
+
+#include "tensorflow/lite/core/async/c/types.h"  // IWYU pragma: export
+
+#endif  // TENSORFLOW_LITE_ASYNC_C_TYPES_H_