*fill placeholders from the placeholders in the settings file*

def _fill_placeholders_from_settings(
            self):
        """
        *fill placeholders from the placeholders in the settings file*
        """
        self.log.info(
            'starting the ``_fill_placeholders_from_settings`` method')

        for k, v in self.phDict.iteritems():
            if k in self.settings["frankenstein"]["fixed placeholders"].keys():
                self.phDict[k] = self.settings[
                    "frankenstein"]["fixed placeholders"][k]

        self.log.info(
            'completed the ``_fill_placeholders_from_settings`` method')
        return None