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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_fullpath(self, withext=True):
 """Return the filepath with the filename :param withext: If True, return with the fileextension. :type withext: bool :returns: None :rtype: None :raises: None """

        p = self.get_path(self._obj)
        n = self.get_name(self._obj, withext)
        fp = os.path.join(p,n)
        return os.path.normpath(fp)