





lowercase				:	dict[str, float]      						=  {
    "km/h": 1.0,
    "m/s": 3.6,
    "mph": 1.609_344,
    "knot": 1.852,
}

lowercase				:	dict[str, float]      						=  {
    "km/h": 1.0,
    "m/s": 0.277_777_778,
    "mph": 0.621_371_192,
    "knot": 0.539_956_803,
}



def A_     (		A__		,				A__		,				A__    )  ->		float:
       if unit_to not in speed_chart or unit_from not in speed_chart_inverse:
              a__						:     Tuple			=    (
                  F'Incorrect \'from_type\' or \'to_type\' value: {unit_from!r}, {unit_to!r}\n'
                  F'Valid values are: {", ".join(A__    )}'
              )
              raise ValueError(A__    )
       return round(speed * speed_chart[unit_from] * speed_chart_inverse[unit_to]		,				3    )


if __name__ == "__main__":
    import doctest

    doctest.testmod()









import re

from filelock import FileLock


try:
    import nltk

    lowercase				:	List[str]      						=  True
except (ImportError, ModuleNotFoundError):
    lowercase				:	Tuple      						=  False

if NLTK_AVAILABLE:
    with FileLock(""".lock""") as lock:
        nltk.download("""punkt""", quiet=True)



def A_     (		A__    )  ->		str:
       re.sub('<n>'		,				''		,				A__    )  # remove pegasus newline char
       assert NLTK_AVAILABLE, "nltk must be installed to separate newlines between sentences. (pip install nltk)"
       return "\n".join(nltk.sent_tokenize(A__    )    )


