Fix license issue.

PiperOrigin-RevId: 718436866

checkpoint/orbax/checkpoint/BUILD

@@ -3,10 +3,7 @@ package(
     default_visibility = ["//visibility:public"],
 )
 
-license(
-    name = "package_license",
-    package_name = "orbax-checkpoint",
-)
+licenses(["notice"])
 
 py_library(
     name = "checkpoint",

checkpoint/orbax/checkpoint/_src/futures/BUILD

@@ -0,0 +1,41 @@
+package(
+    default_applicable_licenses = ["//:package_license"],
+    default_visibility = ["//visibility:public"],
+)
+
+py_library(
+    name = "synchronization",
+    srcs = ["synchronization.py"],
+    deps = ["//checkpoint/orbax/checkpoint/_src/multihost"],
+)
+
+py_test(
+    name = "synchronization_test",
+    srcs = ["synchronization_test.py"],
+    deps = [
+        ":synchronization",
+        "//checkpoint/orbax/checkpoint/_src/multihost",
+    ],
+)
+
+py_library(
+    name = "future",
+    srcs = ["future.py"],
+    deps = [
+        ":synchronization",
+        "//checkpoint/orbax/checkpoint/_src:asyncio_utils",
+        "//checkpoint/orbax/checkpoint/_src/multihost",
+    ],
+)
+
+py_test(
+    name = "future_test",
+    srcs = ["future_test.py"],
+    args = ["--num_processes=1"],
+    python_version = "PY3",
+    deps = [
+        ":future",
+        ":synchronization",
+        "//checkpoint/orbax/checkpoint/_src/multihost",
+    ],
+)