code: def test_TransducerDecoder_forward(rnn_type):
      ys = torch.randint(0, 10, [4, 10], dtype=torch.long)
      decoder = TransducerDecoder(10, rnn_type=rnn_type)
  
      decoder.set_device(ys.device)
      _ = decoder(ys)
  
file_path: espnet/test/espnet2/asr/decoder/test_transducer_decoder.py
imports: import pytest
  import torch
  from espnet2.asr.decoder.transducer_decoder import TransducerDecoder
  from espnet2.asr.transducer.beam_search_transducer import Hypothesis
label_desc: Use image node_id 1 for calling a global function with example usage: test_TransducerDecoder_forward(rnn_type) without return types