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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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