code: def _default_perceptual_quality_loss_weight():
      """Default perceptual quality loss weight for face stylizer."""
      return loss_functions.PerceptualLossWeight(
          l1=0.5, content=4.0, style=1.0
      )
  
imports: from typing import Sequence
  import dataclasses
  from mediapipe.model_maker.python.core.utils import loss_functions
label_desc: Use image node_id 1 for calling a global function with example usage: _default_perceptual_quality_loss_weight() and returns: loss_functions