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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 _parse_envi(meta):
 """Parse ENVI metadata into Python data structures. See the link for information on the ENVI header file format: http://www.harrisgeospatial.com/docs/enviheaderfiles.html Parameters meta : dict Dictionary of keys and str values to parse, as returned by the rasterio tags(ns='ENVI') call. Returns ------- parsed_meta : dict Dictionary containing the original keys and the parsed values """


    def parsevec(s):
        return np.fromstring(s.strip('{}'), dtype='float', sep=',')

    def default(s):
        return s.strip('{}')

    parse = {'wavelength': parsevec,
             'fwhm': parsevec}
    parsed_meta = {k: parse.get(k, default)(v) for k, v in meta.items()}
    return parsed_meta