fix renaming missprint

src/server/backend.py

@@ -11,11 +11,11 @@ import torch
 from hivemind import use_hivemind_log_handler
 from hivemind.moe.server.module_backend import ModuleBackend
 from hivemind.moe.server.task_pool import Task, TaskPool
-from hivemind.utils import InvalidStateError, MPFuture, get_logger
+from hivemind.utils import InvalidStateError, get_logger
 
 from src.bloom.from_pretrained import BloomBlock
 from src.server.cache import MemoryCache
-from src.server.task_broker import SimpleBroker, TaskBrokerBase
+from src.server.task_broker import DustBrokerBase, SimpleBroker
 
 use_hivemind_log_handler("in_root_logger")
 logger = get_logger(__file__)
@@ -30,7 +30,7 @@ class PrioritizedTask:
 
 
 class PrioritizedTaskPool(TaskPool):
-    def __init__(self, *args, broker: TaskBrokerBase = SimpleBroker(), **kwargs):
+    def __init__(self, *args, broker: DustBrokerBase = SimpleBroker(), **kwargs):
         super().__init__(*args, **kwargs)
         self.broker = broker
         self.dust_queue = mp.Queue(maxsize=self.tasks.maxsize)