code: def to_capabilities(self):
          
          caps = self._caps
  
          browser_options = {}
          if self.binary_location:
              browser_options["binary"] = self.binary_location
          if self.arguments:
              browser_options["args"] = self.arguments
          browser_options["useOverlayScrollbars"] = self.overlay_scrollbars_enabled
  
          caps[Options.KEY] = browser_options
  
          return caps
docs: Creates a capabilities with all the options that have been set and
          returns a dictionary with everything