code: def write_kernel(kernel: Kernel, autogen_dir: Path) -> None:
      prelude = """// Copyright (c) 2023, Tri Dao.
  // Splitting the different head dimensions to different files to speed up compilation.
  // This file is auto-generated. See "generate_kernels.py"\n
  """
      (autogen_dir / kernel.filename).write_text(
          prelude + kernel.template
      )
  
file_path: flash-attention/csrc/flash_attn/src/generate_kernels.py
imports: import argparse
  import itertools
  from dataclasses import dataclass
  from pathlib import Path
  from typing import List, Optional
label_desc: Use image node_id 2 for calling a global function with example usage: write_kernel(kernel, autogen_dir) without return types