enable accelerate

Signed-off-by: junjie.jiang <junjie.jiang@zilliz.com>

timm_image.py

@@ -23,7 +23,11 @@ from towhee.operator.base import NNOperator, OperatorFlag
 from towhee.types.arg import arg, to_image_color
 from towhee import register
 from towhee.types import Image
-# from towhee.dc2 import accelerate
+try:
+    from towhee import accelerate
+except:
+    def accelerate(func):
+        return func
 
 import torch
 from torch import nn
@@ -48,7 +52,7 @@ def torch_no_grad(f):
     return wrap
 
 
-# @accelerate
+@accelerate
 class Model:
     def __init__(self, model_name, device, num_classes):
         self.device = device