def abbr(value: Any, limit: int=20) -> str:
    """
    Converts a value into its string representation and abbreviates that
    representation based on the given length `limit` if necessary.
    """
    rep = repr(value)

    if len(rep) > limit:
        if limit < 3:
            raise ValueError('Abbreviation limit may not be less than 3')

        rep = rep[:limit - 3] + '...'

    return rep
Converts a value into its string representation and abbreviates that
    representation based on the given length `limit` if necessary.