chore: import upstream snapshot with attribution

tensorflow/python/trackable/BUILD

@@ -0,0 +1,291 @@
+# Description:
+#   Trackable class and subclass definitions.
+
+load("@xla//third_party/rules_python/python:py_library.bzl", "py_library")
+load("//tensorflow:tensorflow.default.bzl", "tf_py_strict_test")
+
+package(
+    # copybara:uncomment default_applicable_licenses = ["//tensorflow:license"],
+    default_visibility = [
+        "//tensorflow:internal",
+    ],
+    licenses = ["notice"],
+)
+
+py_library(
+    name = "trackable",
+    strict_deps = True,
+    visibility = [
+        "//tensorflow:internal",
+        "//third_party/py/tf_agents:__subpackages__",
+    ],
+    deps = [
+        ":asset",
+        ":autotrackable",
+        ":base",
+        ":base_delegate",
+        ":constants",
+        ":converter",
+        ":data_structures",
+        ":layer_utils",
+        ":python_state",
+        ":resource",
+        ":trackable_init",
+        ":trackable_utils",
+    ],
+)
+
+py_library(
+    name = "trackable_init",
+    srcs = ["__init__.py"],
+    strict_deps = True,
+)
+
+py_library(
+    name = "base",
+    srcs = ["base.py"],
+    strict_deps = True,
+    deps = [
+        ":constants",
+        "//tensorflow/python/eager:context",
+        "//tensorflow/python/framework:dtypes",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/ops:control_flow_ops_gen",
+        "//tensorflow/python/training/saving:saveable_object",
+        "//tensorflow/python/util:tf_contextlib",
+        "//tensorflow/python/util:tf_decorator_py",
+        "//tensorflow/python/util:tf_export",
+    ],
+)
+
+tf_py_strict_test(
+    name = "base_test",
+    srcs = ["base_test.py"],
+    deps = [
+        ":base",
+        "//tensorflow/python/checkpoint",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/ops:variable_scope",
+        "//tensorflow/python/platform:client_testlib",
+    ],
+)
+
+py_library(
+    name = "constants",
+    srcs = ["constants.py"],
+    strict_deps = True,
+)
+
+py_library(
+    name = "converter",
+    srcs = ["converter.py"],
+    strict_deps = True,
+    deps = [
+        ":base",
+        ":data_structures",
+        "//tensorflow/python/eager/polymorphic_function:saved_model_utils",
+        "//tensorflow/python/framework:dtypes",
+        "//tensorflow/python/framework:tensor_util",
+        "//tensorflow/python/ops:resource_variable_ops",
+    ],
+)
+
+py_library(
+    name = "trackable_utils",
+    srcs = ["trackable_utils.py"],
+    strict_deps = True,
+)
+
+tf_py_strict_test(
+    name = "trackable_utils_test",
+    srcs = ["trackable_utils_test.py"],
+    deps = [
+        ":trackable_utils",
+        "//tensorflow/python/eager:test",
+    ],
+)
+
+py_library(
+    name = "base_delegate",
+    srcs = ["base_delegate.py"],
+    strict_deps = True,
+    deps = [
+        "//tensorflow/python/util:tf_export",
+    ],
+)
+
+tf_py_strict_test(
+    name = "base_delegate_test",
+    srcs = ["base_delegate_test.py"],
+    deps = [
+        ":base",
+        ":base_delegate",
+        "//tensorflow/python:extra_py_tests_deps",
+        "//tensorflow/python/checkpoint",
+        "//tensorflow/python/checkpoint:checkpoint_options",
+        "//tensorflow/python/eager:test",
+        "//tensorflow/python/framework:test_lib",
+        "//tensorflow/python/ops:variables",
+        "//tensorflow/python/saved_model:load",
+        "//tensorflow/python/saved_model:save",
+        "@absl_py//absl/testing:parameterized",
+    ],
+)
+
+py_library(
+    name = "asset",
+    srcs = ["asset.py"],
+    strict_deps = True,
+    deps = [
+        ":base",
+        "//tensorflow/python/eager:context",
+        "//tensorflow/python/framework:dtypes",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/framework:tensor_conversion_registry",
+        "//tensorflow/python/lib/io:file_io",
+        "//tensorflow/python/ops:array_ops",
+        "//tensorflow/python/ops:resource_variable_ops",
+        "//tensorflow/python/saved_model:path_helpers",
+        "//tensorflow/python/util:tf_export",
+    ],
+)
+
+py_library(
+    name = "autotrackable",
+    srcs = ["autotrackable.py"],
+    strict_deps = True,
+    visibility = ["//visibility:public"],
+    deps = [
+        ":base",
+        ":data_structures",
+        "//tensorflow/python/eager:def_function",
+        "//tensorflow/python/eager:function",
+        "//tensorflow/python/types:core",
+        "//tensorflow/python/util:tf_export",
+        "@absl_py//absl/logging",
+    ],
+)
+
+tf_py_strict_test(
+    name = "autotrackable_test",
+    srcs = ["autotrackable_test.py"],
+    deps = [
+        ":autotrackable",
+        ":data_structures",
+        "//tensorflow/python/checkpoint",
+        "//tensorflow/python/framework:test_lib",
+        "//tensorflow/python/ops:array_ops",
+        "//tensorflow/python/platform:client_testlib",
+        "//tensorflow/python/util:nest",
+    ],
+)
+
+py_library(
+    name = "resource",
+    srcs = ["resource.py"],
+    strict_deps = True,
+    visibility = [
+        "//intelligence/climate_foundations/vlm/export:__subpackages__",
+        "//tensorflow:internal",
+    ],
+    deps = [
+        ":base",
+        "//tensorflow/python/eager:context",
+        "//tensorflow/python/eager:def_function",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/framework:tensor",
+        "//tensorflow/python/util:tf_contextlib",
+        "//tensorflow/python/util:tf_export",
+    ],
+)
+
+tf_py_strict_test(
+    name = "resource_test",
+    srcs = ["resource_test.py"],
+    deps = [
+        ":resource",
+        "//tensorflow/python/eager:context",
+        "//tensorflow/python/eager:wrap_function",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/framework:test_lib",
+        "//tensorflow/python/platform:client_testlib",
+    ],
+)
+
+py_library(
+    name = "layer_utils",
+    srcs = ["layer_utils.py"],
+    strict_deps = True,
+    deps = ["//tensorflow/python/util:object_identity"],
+)
+
+py_library(
+    name = "data_structures",
+    srcs = ["data_structures.py"],
+    strict_deps = True,
+    deps = [
+        ":base",
+        ":layer_utils",
+        "//tensorflow/python/eager:def_function",
+        "//tensorflow/python/eager:function",
+        "//tensorflow/python/ops:variables",
+        "//tensorflow/python/util:compat",
+        "//tensorflow/python/util:tf_export",
+        "@pypi//wrapt",
+    ],
+)
+
+tf_py_strict_test(
+    name = "data_structures_test",
+    srcs = ["data_structures_test.py"],
+    tags = [
+        "no_oss",  # Keras is not available in OSS test
+        "no_windows",
+        "nomac",
+    ],
+    deps = [
+        ":autotrackable",
+        ":data_structures",
+        "//tensorflow/python/checkpoint",
+        "//tensorflow/python/data/ops:dataset_ops",
+        "//tensorflow/python/eager:context",
+        "//tensorflow/python/eager:def_function",
+        "//tensorflow/python/eager:test",
+        "//tensorflow/python/framework:constant_op",
+        "//tensorflow/python/framework:tensor_shape",
+        "//tensorflow/python/module",
+        "//tensorflow/python/ops:array_ops",
+        "//tensorflow/python/ops:resource_variable_ops",
+        "//tensorflow/python/ops:variables",
+        "//tensorflow/python/util:nest",
+        "//tensorflow/python/util:serialization",
+        "@absl_py//absl/testing:parameterized",
+    ],
+)
+
+py_library(
+    name = "python_state",
+    srcs = ["python_state.py"],
+    strict_deps = True,
+    deps = [
+        ":base",
+        "//tensorflow/python/framework:constant_op",
+        "//tensorflow/python/framework:dtypes",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/util:tf_export",
+    ],
+)
+
+tf_py_strict_test(
+    name = "python_state_test",
+    srcs = ["python_state_test.py"],
+    deps = [
+        ":python_state",
+        "//tensorflow/python/checkpoint",
+        "//tensorflow/python/client:session",
+        "//tensorflow/python/framework:ops",
+        "//tensorflow/python/framework:test_lib",
+        "//tensorflow/python/module",
+        "//tensorflow/python/platform:client_testlib",
+    ],
+)