code: def generate_text(feature, outdir: Optional[str] = None) -> str:
      """Returns random text.
  
      `outdir` is unused.
      """
      encoder_or_decoder = _get_feature_encoder_or_decoder(feature)
      length = encoder_or_decoder.get("max_len", 10)
      text = []
      for _ in range(
          random.randint(length - int(length * 0.2), length)
      ):
          text.append(random.choice(encoder_or_decoder["idx2str"]))
      return " ".join(text)
  
imports: import argparse
  import logging
  import os
  import random
  import string
  import sys
  import uuid
  from typing import Dict, List, Optional, Union
  import numpy
  import pandas
  import torch
  import torchaudio
  import yaml
  from packaging import version
  from ludwig.api_annotations import DeveloperAPI
  from ludwig.constants import AUDIO, BAG, BINARY, CATEGORY, CATEGORY_DISTRIBUTION, DATE, DECODER, ENCODER, H3, IMAGE, INPUT_FEATURES, NAME, NUMBER, OUTPUT_FEATURES, PREPROCESSING, SEQUENCE, SET, TEXT, TIMESERIES, TYPE, VECTOR
  from ludwig.contrib import add_contrib_callback_args
  from ludwig.globals import LUDWIG_VERSION
  from ludwig.types import ModelConfigDict
  from ludwig.utils.data_utils import save_csv
  from ludwig.utils.h3_util import components_to_h3
  from ludwig.utils.misc_utils import get_from_registry
  from ludwig.utils.print_utils import print_ludwig
label_desc: Use image node_id 16 for calling a global function with example usage: generate_text(feature, outdir) and returns: str