code: def commit_workload(self, mod: IRModule) -> ms.database.Workload:
      if self.has_workload(mod):
          for workload in self.workloads_:
              if tvm.ir.structural_equal(mod, workload.mod):
                  return workload
      else:
          workload = ms.database.Workload(mod)
          self.workloads_.append(workload)
          return workload
  
imports: import os.path
  import tempfile
  from typing import Callable, List, Optional
  import pytest
  import tvm
  import tvm.testing
  from tvm import meta_schedule
  from tvm import relay, tir
  from tvm.ir.module import IRModule
  from tvm.meta_schedule.database import TuningRecord, Workload
  from tvm.script import tir
  from tvm.target import Target
  from tvm.tir import Schedule
label_desc: Use image node_id 3 for calling the PyMemoryDatabaseOverride obj's underlying member method code with example usage: obj.commit_workload(mod) and returns: workload, workload