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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 dump(obj, path, **kw):
 """Python 2 + 3 compatible version of json.dump. :param obj: The object to be dumped. :param path: The path of the JSON file to be written. :param kw: Keyword parameters are passed to json.dump """

    open_kw = {'mode': 'w'}
    if PY3:  # pragma: no cover
        open_kw['encoding'] = 'utf-8'

    # avoid indented lines ending with ", " on PY2
    if kw.get('indent') and kw.get('separators') is None:
        kw['separators'] = (',', ': ')

    with open(str(path), **open_kw) as fp:
        return json.dump(obj, fp, **kw)