code: def copy(self, *args, **kwargs):
          
          cls = self.__class__    # Note that type conversion does not perform copy
          return cls(pd.Series(self).copy(*args, **kwargs))
docs: Make a copy of this object.
  
          See Also:
              For arguments and description of behavior see `pandas docs`_.
  
          .. _pandas docs: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.copy.html