Experimental Actor Pool (#6055)

* mod_table

* Example fix for gallery

* lint

* nit

* nit

* fix

* gallery

* remove table for now

* training, object store, tune, actors, advanced

* start tf code

* first cut tf

* yapf

* pytorch

* add torch example

* torch

* parallel

* tune

* tuning

* reviewsready

* finetune

* fix

* move_code

* update conf

* compile

* init hyperparameter

* Start images

* overview

* extra

* fix

* works

* update-ps-example

* param_actor

* fix

* examples

* simple

* simplify_pong

* flake8 and run hyperopt

* add comments

* add comments

* add suggestion

* add suggestion

* suggestions

* add suggestion

* add suggestions

* fixed in wrong area

* last edit

* finish changes

* add line

* format

* reset

* tests and docs

* fix tests

* bazelify

Co-authored-by: Richard Liaw <rliaw@berkeley.edu>

python/ray/experimental/__init__.py

@@ -6,6 +6,7 @@ from .gcs_flush_policy import (set_flushing_policy, GcsFlushPolicy,
                                SimpleGcsFlushPolicy)
 from .named_actors import get_actor, register_actor
 from .api import get, wait
+from .actor_pool import ActorPool
 from .dynamic_resources import set_resource
 
 
@@ -18,5 +19,5 @@ def TensorFlowVariables(*args, **kwargs):
 __all__ = [
     "TensorFlowVariables", "get_actor", "register_actor", "get", "wait",
     "set_flushing_policy", "GcsFlushPolicy", "SimpleGcsFlushPolicy",
-    "set_resource"
+    "set_resource", "ActorPool"
 ]