code: def validate_batch(batch):
      batch_validator.validate("batch", batch)
  
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 4 for calling a global function with example usage: validate_batch(batch) without return types