code: def mse_loss(pred, target):
      """Warpper of mse loss."""
      return F.mse_loss(pred, target, reduction="none")
  
file_path: insightface/detection/scrfd/mmdet/models/losses/mse_loss.py
imports: import torch.nn
  import torch.nn.functional
  from ..builder import LOSSES
  from .utils import weighted_loss
label_desc: Use image node_id 1 for calling a global function with example usage: mse_loss(pred, target) and returns: F