How to use the gspread.models.Worksheet function in gspread

body = {
            'requests': [{
                'duplicateSheet': {
                    'sourceSheetId': source_sheet_id,
                    'insertSheetIndex': insert_sheet_index,
                    'newSheetId': new_sheet_id,
                    'newSheetName': new_sheet_name
                }
            }]
        }

        data = self.batch_update(body)

        properties = data['replies'][0]['duplicateSheet']['properties']

        worksheet = Worksheet(self, properties)

        return worksheet

def worksheets(self):
        """Returns a list of all :class:`worksheets `
        in a spreadsheet.

        """
        sheet_data = self.fetch_sheet_metadata()
        return [Worksheet(self, x['properties']) for x in sheet_data['sheets']]

sheet : str,Worksheet
            Name or worksheet to find


        Returns
        -------
        tuple
            Tuple like (index, worksheet)
        """
        for ix, worksheet in enumerate(self.sheets):
            if (
                isinstance(sheet, basestring)
                and sheet.lower() == worksheet.title.lower()
            ):
                return ix, worksheet
            if isinstance(sheet, Worksheet) and sheet.id == worksheet.id:
                return ix, worksheet
        return None, None

:type index: int

        :returns: an instance of :class:`gspread.models.Worksheet`
                  or `None` if the worksheet is not found.

        Example. To get first worksheet of a spreadsheet:

        >>> sht = client.open('My fancy spreadsheet')
        >>> worksheet = sht.get_worksheet(0)

        """
        sheet_data = self.fetch_sheet_metadata()

        try:
            properties = sheet_data['sheets'][index]['properties']
            return Worksheet(self, properties)
        except (KeyError, IndexError):
            return None

'title': title,
                        'sheetType': 'GRID',
                        'gridProperties': {
                            'rowCount': rows,
                            'columnCount': cols
                        }
                    }
                }
            }]
        }

        data = self.batch_update(body)

        properties = data['replies'][0]['addSheet']['properties']

        worksheet = Worksheet(self, properties)

        return worksheet

:returns: an instance of :class:`gspread.models.Worksheet`.

        Example. Getting worksheet named 'Annual bonuses'

        >>> sht = client.open('Sample one')
        >>> worksheet = sht.worksheet('Annual bonuses')

        """
        sheet_data = self.fetch_sheet_metadata()
        try:
            item = finditem(
                lambda x: x['properties']['title'] == title,
                sheet_data['sheets']
            )
            return Worksheet(self, item['properties'])
        except (StopIteration, KeyError):
            raise WorksheetNotFound(title)