code: def write_csv_header() -> None:
      """Write CSV file header."""
      with open(_OUTPUT_FILE.value, "w") as f:
          fieldnames = [
              "M",
              "N",
              "K",
              "quantized_lhs",
              "BLOCK_M",
              "BLOCK_N",
              "BLOCK_K",
              "SPLIT_K",
              "lhs_layout",
              "rhs_layout",
              "result_layout",
              "num_stages",
              "num_warps",
              "min_time_ms",
          ]
          writer = csv.writer(f)
          writer.writerow(fieldnames)
  
imports: import concurrent.futures
  import csv
  import itertools
  import logging
  import os
  import random
  import sys
  import time
  import typing
  from absl import app
  from absl import flags
  from matmul_lib import benchmark_matmul
  from matmul_lib import generate_tiling_configs
  from matmul_lib import MatmulSize
  from matmul_lib import MatmulTiming
  from matmul_lib import parse_int_list
  from matmul_lib import parse_layout_list
  from matmul_lib import QuantizedInputType
  import numpy
  import torch
  import tqdm
  from tqdm.contrib.logging import logging_redirect_tqdm
label_desc: Use image node_id 2 for calling a global function with example usage: write_csv_header() without return types