code: def test_gen_train_basic():
      happy_gen.train("../data/gen/train-eval.txt")
  
imports: import torch
  from happytransformer import HappyGeneration, GENSettings, GENTrainArgs, GENEvalArgs
  import pytest
  from tests.run_save_load import run_save_load
  from tests import happy_gen
label_desc: Use image node_id 6 for calling a global function with example usage: test_gen_train_basic() without return types