code: def create_file(self, filename, content):
      with open(
          os.path.join(self.test_dir, filename), "w", encoding="utf-8"
      ) as f:
          f.write(content)
  
imports: import os
  import sys
  from io import StringIO
  from keras.testing import test_case
  from keras.utils.code_stats import count_loc
label_desc: Use image node_id 3 for calling the TestCountLoc obj's underlying member method code with example usage: obj.create_file(filename, content) without return types