docstr: A proxy-call to the dataframe's `.window()`.
code: def rolling(self, window):
      """
      A proxy-call to the dataframe's `.window()`.
      """
      return self.dataframe.rolling(window=window)
  
imports: from abc import ABC
label_desc: Use image node_id 40 for calling the DataframeAbstract obj's underlying member method code with example usage: obj.rolling(window) and returns: self