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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 get_formatter_report(f: logging.Formatter) -> Optional[Dict[str, str]]: """ Returns information on a log formatter, as a dictionary. For debugging. """

    if f is None:
        return None
    return {
        '_fmt': f._fmt,
        'datefmt': f.datefmt,
        '_style': str(f._style),
    }