def METHOD_NAME(
    self,
    prev_output_tokens,
    encoder_out: Optional[Dict[str, List[Tensor]]] = None,
    incremental_state: Optional[Dict[str, Dict[str, Optional[Tensor]]]] = None,
    full_context_alignment: bool = False,
    alignment_layer: Optional[int] = None,
    alignment_heads: Optional[int] = None,
):
    # call scriptable method from parent class
    x, _ = self.extract_features_scriptable(
        prev_output_tokens,
        encoder_out,
        incremental_state,
        full_context_alignment,
        alignment_layer,
        alignment_heads,
    )
    return x, None