code: def format_runtime_string(raw_seconds: float) -> str:
      """Creates a nice format string from a potentially large number of seconds.
  
      Args:
        raw_seconds: A number of seconds.
  
      Returns:
        The seconds divided into hours, minutes, and remaining seconds, formatted
            nicely. For example, 2h3m5.012s.
      """
      minutes, seconds = divmod(raw_seconds, 60)
      hours, minutes = divmod(minutes, 60)
      seconds = round(seconds, 3)
      output = ""
      if hours > 0:
          output += f"{int(hours)}h"
      if minutes > 0:
          output += f"{int(minutes)}m"
      if seconds > 0 or not output:
          output += f"{seconds}s"
      return output
  
imports: from typing import Dict, Sequence, List, Tuple, Text, Union
  from absl import app
  from absl import flags
  import altair
  import pandas
  import tensorflow
  from third_party.nucleus.io import sharded_file_utils
  from deepvariant import dashboard_utils
label_desc: Use image node_id 2 for calling a global function with example usage: format_runtime_string(raw_seconds) and returns: output