def get_last_posted_tweet(bot: API) -> Story:
"""
Gets the last tweet posted and parses it.
:param bot: Twitter bot to fetch the tweet from.
:return: Story parsed from the latest tweet posted.
"""
# Gets its own Twitter ID
twitter_id = bot.me().id
# Gets its own last tweet
last_tweet_list = bot.user_timeline(
id=twitter_id, tweet_mode="extended", count=1)
# If there are no valid tweets raises an exception
if (len(last_tweet_list) == 0):
raise ValueError("No valid tweet found")
# Else gets latest tweet
latest_tweet = last_tweet_list[0]
# Injects UTC timezone into timestamp
created_at = latest_tweet.created_at.replace(tzinfo=timezone.utc)
# Parses tweet to retrieve required fields
story = Story.from_string(pattern=TWITTER_PATTERN, string=latest_tweet.full_text, created_at=created_at)
# Returns story
return story
