code: def _serialize_ir(m: ir.Module) -> bytes:
      output = io.BytesIO()
      m.operation.write_bytecode(file=output)
      return output.getvalue()
  
imports: import copy
  import hashlib
  import io
  import logging
  import os
  import sys
  from jax._src import config
  from jax._src.lib import version_str
  from jax._src.lib import xla_client
  from jax._src.lib.mlir import ir
  from jax._src.lib.mlir import passmanager
  import numpy
label_desc: Use image node_id 6 for calling a global function with example usage: _serialize_ir(m) and returns: output