code: def test_wp_save_load_eval():
      output_path = "data/wp-eval.json"
      data_path = "../data/wp/train-eval.txt"
      args = WPEvalArgs(line_by_line=True, max_length=512)
      run_save_load(happy_wp, output_path, args, data_path, "eval")
  
imports: from pytest import approx
  from happytransformer import HappyWordPrediction, WPTrainArgs, WPEvalArgs
  from happytransformer.happy_word_prediction import WordPredictionResult
  from tests.run_save_load import run_save_load
  import pytest
  from tests import happy_wp
label_desc: Use image node_id 11 for calling a global function with example usage: test_wp_save_load_eval() without return types