code: def validate_args(args):
      
      # Check correctness of similarity dataset names
      for dataset_name in args.similarity_datasets:
          if dataset_name.lower() not in map(
                  str.lower,
                  nlp.data.word_embedding_evaluation.word_similarity_datasets):
              print('{} is not a supported dataset.'.format(dataset_name))
              sys.exit(1)
  
      # Check correctness of analogy dataset names
      for dataset_name in args.analogy_datasets:
          if dataset_name.lower() not in map(
                  str.lower,
                  nlp.data.word_embedding_evaluation.word_analogy_datasets):
              print('{} is not a supported dataset.'.format(dataset_name))
              sys.exit(1)
docs: Validate provided arguments and act on --help.