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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 decode_metar(self, metar):
 """ Simple method that decodes a given metar string. Args: metar (str):
 The metar data Returns: The metar data in readable format Example:: from pyflightdata import FlightData f=FlightData() f.decode_metar('WSSS 181030Z 04009KT 010V080 9999 FEW018TCU BKN300 29/22 Q1007 NOSIG') """

        try:
            from metar import Metar
        except:
            return "Unable to parse metars. Please install parser from https://github.com/tomp/python-metar."
        m = Metar.Metar(metar)
        return m.string()