code: def init_states(self, batch_size: int) -> Tuple[tf.Tensor, tf.Tensor]:
      return tf.zeros([batch_size, self.lstm_size]), tf.zeros(
          [batch_size, self.lstm_size]
      )
  
file_path: headliner/headliner/model/attention_model.py
imports: from typing import Tuple
  import tensorflow
label_desc: Use image node_id 3 for calling the Encoder obj's underlying member method code with example usage: obj.init_states(batch_size) and returns: tf,  tf