class_docstr: The pipeline object which is used to store the series of transformation of features and model
class_docstr_tok: ["The","pipeline","object","which","is","used","to","store","the","series","of","transformation","of","features","and","model"]
docstr: save the pipeline to a file
  :param file: the pipeline file
  :return: a pipeline object
docstr_tok: ["save","the","pipeline","to","a","file",":","param","file",":","the","pipeline","file",":","return",":","a","pipeline","object"]
code: def save(self, file):
      """
      save the pipeline to a file
      :param file: the pipeline file
      :return: a pipeline object
      """
      pass
  
imports: from abc import ABC, abstractmethod
label_desc: Use image node_id 3 for calling the Pipeline obj's underlying member method code with example usage: obj.save(file) without return types