code: def validate_batch_update(update):
      batch_update_validator.validate("batch_update", update)
  
imports: from hailtop.batch_client.parse import CPU_REGEX, CPU_REGEXPAT, MEMORY_REGEX, MEMORY_REGEXPAT, STORAGE_REGEX, STORAGE_REGEXPAT
  from hailtop.utils.validate import ValidationError, anyof, bool_type, dictof, int_type, keyed, listof, non_empty_str_type, nullable, numeric, oneof, regex, required, str_type, switch
  from ..globals import memory_types
label_desc: Use image node_id 5 for calling a global function with example usage: validate_batch_update(update) without return types