code: def Page_screencastFrameAck(self, sessionId):
  		
  		assert isinstance(sessionId, (int,)
  		    ), "Argument 'sessionId' must be of type '['int']'. Received type: '%s'" % type(
  		    sessionId)
  		subdom_funcs = self.synchronous_command('Page.screencastFrameAck',
  		    sessionId=sessionId)
  		return subdom_funcs
docs: Function path: Page.screencastFrameAck
  			Domain: Page
  			Method name: screencastFrameAck
  		
  			WARNING: This function is marked 'Experimental'!
  		
  			Parameters:
  				Required arguments:
  					'sessionId' (type: integer) -> Frame number.
  			No return value.
  		
  			Description: Acknowledges that a screencast frame has been received by the frontend.