code: def opacity_intensity(level: float, **kwargs) -> float:
      assert (
          isinstance(level, (float, int)) and 0 <= level <= 1
      ), "level must be a number in [0, 1]"
  
      return (1 - level) * 100.0
  
imports: from typing import Any, Dict, Optional, Union
  import numpy
  from augly.image import utils
  from PIL import Image
label_desc: Use image node_id 16 for calling a global function with example usage: opacity_intensity(level) and returns: unknown