code: def scale_db(db):
      """Scales [-DB_RANGE, 0] to [0, 1]."""
      return (db / DB_RANGE) + 1.0
  
imports: import ddsp
  from ddsp.training import nn
  import gin
  import tensorflow
label_desc: Use image node_id 2 for calling a global function with example usage: scale_db(db) and returns: unknown