def retrive_tweet_data(user, since_time, to_time):
items_limit = 20
week_tweets_query = SavedTweets.all().filter("user ="******"retweet_time >=", since_time).\
filter("retweet_time <", to_time).\
order("-retweet_time")
tweets = week_tweets_query.fetch(limit=items_limit)
return tweets
