docs: def set_proxy(self, proxy):
          """
          Set proxy for requests session
          """
          # TODO: Validate proxy url format
  
          if proxy is None:
              self.driver.proxies = {'http': None,
                                     'https': None
                                     }
          else:
              self.driver.proxies = {'http': proxy,
                                     'https': proxy
                                     }
  
          self.current_proxy = proxy