code: def add_decoder_general_arguments(
      group: _ArgumentGroup,
  ) -> _ArgumentGroup:
      """Define general arguments for encoder."""
      group.add_argument(
          "--dtype",
          default="lstm",
          type=str,
          choices=["lstm", "gru", "custom"],
          help="Type of decoder to use",
      )
      group.add_argument(
          "--dropout-rate-decoder",
          default=0.0,
          type=float,
          help="Dropout rate for the decoder",
      )
      group.add_argument(
          "--dropout-rate-embed-decoder",
          default=0.0,
          type=float,
          help="Dropout rate for the decoder embedding layer",
      )
  
      return group
  
file_path: espnet/espnet/nets/pytorch_backend/transducer/arguments.py
imports: import ast
  from argparse import _ArgumentGroup
  from distutils.util import strtobool
label_desc: Use image node_id 4 for calling a global function with example usage: add_decoder_general_arguments(group) and returns: group