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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 savePkeyPem(self, pkey, path):
        '''
        Save a private key in PEM format to a file outside the certdir.
        '''
        with s_common.genfile(path) as fd:
            fd.write(crypto.dump_privatekey(crypto.FILETYPE_PEM, pkey))