SidecarEvaluator: Export SidecarEvaluator as tf.keras.experimental.SidecarEvaluator.

PiperOrigin-RevId: 380865941

keras/api/golden/v2/tensorflow.keras.experimental.-sidecar-evaluator.pbtxt

+path: "tensorflow.keras.experimental.SidecarEvaluator"
+tf_class {
+  is_instance: "<class \'keras.distribute.sidecar_evaluator.SidecarEvaluator\'>"
+  is_instance: "<type \'object\'>"
+  member_method {
+    name: "__init__"
+    argspec: "args=[\'self\', \'model\', \'data\', \'checkpoint_dir\', \'steps\', \'max_evaluations\', \'callbacks\'], varargs=None, keywords=None, defaults=[\'None\', \'None\', \'None\'], "
+  }
+  member_method {
+    name: "start"
+    argspec: "args=[\'self\'], varargs=None, keywords=None, defaults=None"
+  }
+}

keras/api/golden/v2/tensorflow.keras.experimental.pbtxt

@@ -20,6 +20,10 @@ tf_module {
     name: "SequenceFeatures"
     mtype: "<type \'type\'>"
   }
+  member {
+    name: "SidecarEvaluator"
+    mtype: "<type \'type\'>"
+  }
   member {
     name: "WideDeepModel"
     mtype: "<type \'type\'>"

keras/distribute/sidecar_evaluator.py

@@ -17,6 +17,7 @@
 
 import tensorflow.compat.v2 as tf
 from tensorflow.python.platform import tf_logging as logging
+from tensorflow.python.util.tf_export import keras_export  # pylint: disable=g-direct-tensorflow-import
 
 _PRINT_EVAL_STEP_EVERY_SEC = 60.0
 _ITERATIONS_UNINITIALIZED = -1
@@ -42,6 +43,7 @@ def list_checkpoint_attributes(ckpt_dir_or_file):
   return {name.split('/')[0] for name in variable_map.keys()}
 
 
+@keras_export('keras.experimental.SidecarEvaluator', v1=[])
 class SidecarEvaluator(object):
   """A class designed for a dedicated evaluator task.