code: def to_native_types(self, slicer=None, **kwargs):
          
  
          values = self
          if slicer is not None:
              values = values[slicer]
          return values._format_native_types(**kwargs)
docs: Format specified values of `self` and return them.
  
          Parameters
          ----------
          slicer : int, array-like
              An indexer into `self` that specifies which values
              are used in the formatting process.
          kwargs : dict
              Options for specifying how the values should be formatted.
              These options include the following:
  
              1) na_rep : str
                  The value that serves as a placeholder for NULL values
              2) quoting : bool or None
                  Whether or not there are quoted values in `self`
              3) date_format : str
                  The format used to represent date-like values