class_docstr: Defines a common interface for all recommendation models
class_docstr_tok: ["Defines","a","common","interface","for","all","recommendation","models"]
docstr: Saves the model to a file, using the numpy `.npz` format
  
  Parameters
  ----------
  file : str or io.IOBase
      Either the filename or an open file-like object to save the model to
  
  See Also
  --------
  load
  numpy.savez
docstr_tok: ["Saves","the","model","to","a","file",",","using","the","numpy","`",".npz","`","format","Parameters","--","--","--","--","--","file",":","str","or","io.IOBase","Either","the","filename","or","an","open","file-like","object","to","save","the","model","to","See","Also","--","--","--","--","load","numpy.savez"]
code: def save(self, file):
      """Saves the model to a file, using the numpy `.npz` format
  
      Parameters
      ----------
      file : str or io.IOBase
          Either the filename or an open file-like object to save the model to
  
      See Also
      --------
      load
      numpy.savez
      """
  
file_path: implicit/implicit/recommender_base.py
imports: import warnings
  from abc import ABCMeta, abstractmethod
  import numpy
label_desc: Use image node_id 5 for calling the RecommenderBase obj's underlying member method code with example usage: obj.save(file) without return types