add pytorch data convertor

freqtrade/freqai/torch/PyTorchMLPModel.py

@@ -1,4 +1,5 @@
 import logging
+from typing import Tuple, List
 
 import torch
 import torch.nn as nn
@@ -46,7 +47,8 @@ class PyTorchMLPModel(nn.Module):
         self.relu = nn.ReLU()
         self.dropout = nn.Dropout(p=dropout_percent)
 
-    def forward(self, x: torch.Tensor) -> torch.Tensor:
+    def forward(self, x: List[torch.Tensor]) -> torch.Tensor:
+        x, = x
         x = self.relu(self.input_layer(x))
         x = self.dropout(x)
         x = self.blocks(x)