Update davit.py

timm/models/davit.py

@@ -17,7 +17,8 @@ DaViT model defs and weights adapted from https://github.com/dingmyu/davit, orig
 # This source code is licensed under the MIT license
 
 import itertools
-from typing import Tuple
+from typing import Any, Dict, Iterable, Iterator, Mapping, Optional, overload, Tuple, TypeVar, Union
+
 
 import torch
 import torch.nn as nn
@@ -37,14 +38,18 @@ __all__ = ['DaViT']
 
 
 class MySequential(nn.Sequential):
-    def forward(self, *inputs):
+    @Overload
+    def forward(self, inputs : Tensor):
         for module in self._modules.values():
-            if type(inputs) == tuple:
-                inputs = module(*inputs)
-            else:
             inputs = module(inputs)
         return inputs
         
+    @Overload
+    def forward(self, inputs : Tuple[Tensor, Tensor]):
+        for module in self._modules.values():
+                inputs = module(*inputs)
+        return inputs
+
 
 class ConvPosEnc(nn.Module):
     def __init__(self, dim, k=3, act=False, normtype=False):