code: def check_input_data(self, args):
      input_data = []
      if args.input_file:
          if not os.path.exists(args.input_file):
              print("File %s is not exist." % args.input_file)
              raise RuntimeError
          else:
              input_data = txt_parser.parse(
                  args.input_file, use_strip=True
              )
      elif args.input_text:
          if args.input_text.strip() != "":
              if six.PY2:
                  input_data = [
                      args.input_text.decode(
                          sys_stdin_encoding()
                      ).decode("utf8")
                  ]
              else:
                  input_data = [args.input_text]
  
      if input_data == []:
          print(
              "ERROR: The input data is inconsistent with expectations."
          )
          raise DataFormatError
  
      return input_data
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import ast
  import io
  import math
  import os
  import numpy
  import six
  from paddle.inference import Config
  from paddle.inference import create_predictor
  from .custom import Customization
  from .processor import load_kv_dict
  from .processor import parse_result
  from .processor import word_to_ids
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import runnable
  from paddlehub.module.module import serving
  from paddlehub.utils.parser import txt_parser
  from paddlehub.utils.utils import sys_stdin_encoding
label_desc: Use image node_id 14 for calling the LAC obj's underlying member method code with example usage: obj.check_input_data(args) and returns: input_data