class_docstr: A masker that outputs both the masked data and the original data as a pair.
      
docstr: Write a FixedComposite masker to a file stream.
          
docstr_tok: ["Write","a","FixedComposite","masker","to","a","file","stream","."]
code: def save(self, out_file):
      """Write a FixedComposite masker to a file stream."""
      super().save(out_file)
  
      # Increment the version number when the encoding changes!
      with Serializer(
          out_file, "shap.maskers.FixedComposite", version=0
      ) as s:
          s.save("masker", self.masker)
  
file_path: shap/shap/maskers/_fixed_composite.py
imports: import numpy
  from .._serializable import Deserializer, Serializer
  from ._masker import Masker
label_desc: Use image node_id 3 for calling the FixedComposite obj's underlying member method code with example usage: obj.save(out_file) without return types