refactored

src/rbm/layer.py

@@ -10,19 +10,14 @@ class Layer:
 		self.name = name
 		self.shape = shape
 		self.entity = Entity((shape[0]*shape[1]+shape[2], shape[3]), params)
-		self.state_filename = f"{self.name}_state.npz"
 
 	def init(self, std: float):
 		self.entity.state.init(mu=0, std=std)
 
 	def save(self, filename: str = None):
-		if filename is None:
-			filename = self.state_filename
 		self.entity.state.to_file(filename)
 
 	def load(self, filename: str = None):
-		if filename is None:
-			filename = self.state_filename
 		state = RbmState.from_file(filename)
 		if state is not None:
 			self.entity.state = state