          'invalid': _("Date has wrong format. Use one of these formats instead: %s"),
      }
      empty = None
  
      def __init__(self, *args, **kwargs):
          self.input_formats = kwargs.pop('input_formats', api_settings.DATE_INPUT_FORMATS)
          self.output_format = kwargs.pop('output_format', api_settings.DATE_OUTPUT_FORMAT)
          super(DateField, self).__init__(*args, **kwargs)
  
      def from_native(self, value):
          if value in validators.EMPTY_VALUES:
              return None
 
</s> remove     def __init__(self, *args, **kwargs):
        self.input_formats = kwargs.pop('input_formats', api_settings.TIME_INPUT_FORMATS)
        self.output_format = kwargs.pop('output_format', api_settings.TIME_OUTPUT_FORMAT)
 </s> add     def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.TIME_INPUT_FORMATS
        self.output_format = output_format or api_settings.TIME_OUTPUT_FORMAT </s> remove     def __init__(self, *args, **kwargs):
        self.input_formats = kwargs.pop('input_formats', api_settings.DATETIME_INPUT_FORMATS)
        self.output_format = kwargs.pop('output_format', api_settings.DATETIME_OUTPUT_FORMAT)
 </s> add     def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.DATETIME_INPUT_FORMATS
        self.output_format = output_format or api_settings.DATETIME_OUTPUT_FORMAT
    def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.DATE_INPUT_FORMATS
        self.output_format = output_format or api_settings.DATE_OUTPUT_FORMAT
          'invalid': _("Date has wrong format. Use one of these formats instead: %s"),
      }
      empty = None
  
    def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.DATE_INPUT_FORMATS
        self.output_format = output_format or api_settings.DATE_OUTPUT_FORMAT
    def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.DATE_INPUT_FORMATS
        self.output_format = output_format or api_settings.DATE_OUTPUT_FORMAT
    def __init__(self, input_formats=None, output_format=None, *args, **kwargs):
        self.input_formats = input_formats or api_settings.DATE_INPUT_FORMATS
        self.output_format = output_format or api_settings.DATE_OUTPUT_FORMAT
          super(DateField, self).__init__(*args, **kwargs)
  
      def from_native(self, value):
          if value in validators.EMPTY_VALUES:
              return None
keep keep keep keep replace replace replace keep keep keep keep keep
 Add docs update - part 1 
rest_framework/fields.py