code: def add_encoder_general_arguments(
      group: _ArgumentGroup,
  ) -> _ArgumentGroup:
      """Define general arguments for encoder."""
      group.add_argument(
          "--etype",
          default="blstmp",
          type=str,
          choices=[
              "custom",
              "lstm",
              "blstm",
              "lstmp",
              "blstmp",
              "vgglstmp",
              "vggblstmp",
              "vgglstm",
              "vggblstm",
              "gru",
              "bgru",
              "grup",
              "bgrup",
              "vgggrup",
              "vggbgrup",
              "vgggru",
              "vggbgru",
          ],
          help="Type of encoder network architecture",
      )
      group.add_argument(
          "--dropout-rate",
          default=0.0,
          type=float,
          help="Dropout rate for the encoder",
      )
  
      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 1 for calling a global function with example usage: add_encoder_general_arguments(group) and returns: group