code: def from_trace(lr_scheduler_trace: SCHEDULER):  # type: ignore
      assert is_traceable(
          lr_scheduler_trace
      ), "Please use nni.trace to wrap the lr scheduler class before initialize the scheduler."
      assert isinstance(
          lr_scheduler_trace, SCHEDULER
      ), f"It is not an instance of torch.nn.lr_scheduler.{SCHEDULER}."
      return LRSchedulerConstructHelper(
          lr_scheduler_trace.trace_symbol,
          *lr_scheduler_trace.trace_args,  # type: ignore
          **lr_scheduler_trace.trace_kwargs,
      )
  
imports: from __future__ import annotations
  from copy import deepcopy
  from typing import Callable, Dict, List, Type
  from torch import Tensor
  from torch.nn import Module
  from torch.optim import Optimizer
  from nni.common.serializer import is_traceable
  from nni.common.types import SCHEDULER
label_desc: Use image node_id 3 for calling the LRSchedulerConstructHelper obj's underlying member method code with example usage: obj.from_trace(lr_scheduler_trace) and returns: LRSchedulerConstructHelper