class_docstr: Same as `loss_cls`, but flattens input and target.
code: def reduction(self) -> str:
      return self.func.reduction
  
imports: from __future__ import annotations
  from .imports import *
  from .torch_imports import *
  from .torch_core import *
  from .layers import *
label_desc: Use image node_id 3 for calling the BaseLoss obj's underlying member method code with example usage: obj.reduction() and returns: self