(self)
return {k: v for op in self.optimizers for k, v in op.state.items()}
?
?
?
def state(self):
        """ ? """
        return {k: v for op in self.optimizers for k, v in op.state.items()}
def state ( self ) : return { k : v for op in self . optimizers for k , v in op . state . items ( ) }