code: def setup_param_file_with_groups(make_temporary_file):
      filename = make_temporary_file
      with open(filename, "w") as ofile:
          ofile.write("Test 1,0,1.0,Group 1\n")
          ofile.write("Test 2,0,1.0,Group 1\n")
          ofile.write("Test 3,0,1.0,Group 2\n")
      return filename
  
imports: import pytest
  import tempfile
label_desc: Use image node_id 4 for calling a global function with example usage: setup_param_file_with_groups(make_temporary_file) and returns: filename