Change Python's ObjectID to ObjectRef (#9353)

streaming/python/includes/transfer.pxi

@@ -21,7 +21,7 @@ from ray.includes.unique_ids cimport (
 from ray._raylet cimport (
     Buffer,
     ActorID,
-    ObjectID,
+    ObjectRef,
     FunctionDescriptor,
 )
 
@@ -49,7 +49,7 @@ channel_logger = logging.getLogger(__name__)
 cdef class ChannelCreationParameter:
     cdef:
         CChannelCreationParameter parameter
-    
+
     def __cinit__(self, ActorID actor_id, FunctionDescriptor async_func, FunctionDescriptor sync_func):
         cdef:
             shared_ptr[CRayFunction] async_func_ptr
@@ -190,7 +190,7 @@ cdef class DataWriter:
             channel_logger.info("deleted DataWriter")
             self.writer = NULL
 
-    def write(self, ObjectID qid, const unsigned char[:] value):
+    def write(self, ObjectRef qid, const unsigned char[:] value):
         """support zero-copy bytes, bytearray, array of unsigned char"""
         cdef:
             CObjectID native_id = qid.data
@@ -322,4 +322,4 @@ cdef c_vector[c_string] qid_vector_to_list(c_vector[CObjectID] queue_id_vec):
     queues = []
     for obj_id in queue_id_vec:
         queues.append(obj_id.Binary())
-    return queues
+    return queues

streaming/python/runtime/transfer.py

@@ -27,7 +27,8 @@ class ChannelID:
             channel_id_str: string representation of channel id
         """
         self.channel_id_str = channel_id_str
-        self.object_qid = ray.ObjectID(channel_id_str_to_bytes(channel_id_str))
+        self.object_qid = ray.ObjectRef(
+            channel_id_str_to_bytes(channel_id_str))
 
     def __eq__(self, other):
         if other is None: