diff --git a/enhancer/models/model.py b/enhancer/models/model.py
index c7bfe30..a5b305f 100644
--- a/enhancer/models/model.py
+++ b/enhancer/models/model.py
@@ -1,4 +1,5 @@
 from typing import Optional
+from torch.optim import Adam
 import pytorch_lightning as pl
 
 from enhancer.data.dataset import Dataset
@@ -8,12 +9,16 @@ class Model(pl.LightningModule):
 
     def __init__(
         self,
-        dataset:Dataset
+        num_channels:int=1,
+        sampling_rate:int=16000,
+        lr:float=1e-3,
+        dataset:Optional[Dataset]=None,
     ):
         super().__init__()
+        assert num_channels ==1 , "Enhancer only support for mono channel models"
+        self.save_hyperparameters("num_channels","sampling_rate","lr")
         self.dataset = dataset
 
-        pass
     
     @property
     def dataset(self):
@@ -23,21 +28,24 @@ class Model(pl.LightningModule):
     def dataset(self,dataset):
         self._dataset = dataset
 
-    def setup(
-        self,
-        stage:Optional[str]=None
-    ):
+    def setup(self,stage:Optional[str]=None):
         if stage == "fit":
             self.dataset.setup(stage)
             self.dataset.model = self 
         
 
-    def train_dataloader(
-        self
-    ):
+    def train_dataloader(self):
         return self.dataset.train_dataloader()
 
-    def val_dataloader(
-        self
-    ):
+    def val_dataloader(self):
         return self.dataset.val_dataloader()
+
+    def configure_optimizers(self):
+        return Adam(self.parameters, lr = self.hparams.lr)
+
+    def training_step(self,batch, batch_idx:int):
+        pass
+
+    @classmethod
+    def from_pretrained(cls,):
+        pass
\ No newline at end of file