def is_original_format(tweet):
    """
    Simple checker to flag the format of a tweet.

    Args:
        tweet (Tweet): tweet in qustion

    Returns:
        Bool

    Example:
        >>> import tweet_parser.tweet_checking as tc
        >>> tweet = {"created_at": 124125125125,
        ...          "text": "just setting up my twttr",
        ...          "nested_field": {"nested_1": "field", "nested_2": "field2"}}
        >>> tc.is_original_format(tweet)
        True
    """
    # deleted due to excess checking; it's a key lookup and does not need any
    # operational optimization
    if "created_at" in tweet:
        original_format = True
    elif "postedTime" in tweet:
        original_format = False
    else:
        raise NotATweetError("This dict has neither 'created_at' or 'postedTime' as keys")
    return original_format
Simple checker to flag the format of a tweet.

    Args:
        tweet (Tweet): tweet in qustion

    Returns:
        Bool

    Example:
        >>> import tweet_parser.tweet_checking as tc
        >>> tweet = {"created_at": 124125125125,
        ...          "text": "just setting up my twttr",
        ...          "nested_field": {"nested_1": "field", "nested_2": "field2"}}
        >>> tc.is_original_format(tweet)
        True