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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 _writeRmc(self, filelike, specfile):
 """Writes the ``.rmc`` container entry of the specified specfile as an human readable and pretty formatted xml string. :param filelike: path to a file (str) or a file-like object :param specfile: name of an ms-run file present in ``self.info`` """

        xmlString = ETREE.tostring(self.rmc[specfile], pretty_print=True)
        filelike.write(xmlString)