if self.api_key is None:
self.api_key = os.getenv("FMP_API_KEY")
self.symbol = symbol
self.start_date = start_date
self.end_date = end_date
self.max_pages = max_pages
self.request_url = "https://financialmodelingprep.com/api/v3/stock_news?tickers={}&page={}&limit=100&from={}&to={}&apikey={}"