code: def gcp_requested_to_actual_storage_bytes(
      storage_bytes, allow_zero_storage
  ):
      if storage_bytes > GCP_MAX_PERSISTENT_SSD_SIZE_GIB * 1024**3:
          return None
      if allow_zero_storage and storage_bytes == 0:
          return storage_bytes
      # minimum storage for a GCE instance is 10Gi
      return max(10 * 1024**3, storage_bytes)
  
file_path: hail/batch/batch/cloud/gcp/resource_utils.py
imports: import logging
  import re
  from typing import Optional, Tuple
label_desc: Use image node_id 6 for calling a global function with example usage: gcp_requested_to_actual_storage_bytes(storage_bytes, allow_zero_storage) and returns: max, None, storage_bytes