code: def __init__(self, alpha_estimator, **kargs):
      self.alpha_estimator = alpha_estimator
      self.kargs = kargs
  
imports: import pymatting
  from paddleseg.cvlibs import manager
label_desc: Use image node_id 1 to create a new BaseMLMatting object from inherited base classes: object with example: obj = BaseMLMatting(alpha_estimator)