accessing
getMessages
	| lastTweetsRaw customQuery lastTweets |
	lastTweetsRaw := self rssFeed xmlDocument xpath: '//item'.
	lastTweets := TweetsCollection new.
	customQuery := Dictionary new
		at: 'parameters' put: self;
		at: 'date' put: DateAndTime now;
		yourself.
	lastTweets query: customQuery. 
	lastTweetsRaw do: [ :rssTweet | 
		lastTweets add: ((Tweet new fromNitterRssItem: rssTweet ))
	].
	^ lastTweets