def do_zero(self, params):
        """
\x1b[1mNAME\x1b[0m
        zero - Set the znode's to None (no bytes)

\x1b[1mSYNOPSIS\x1b[0m
        zero <path> [version]

\x1b[1mOPTIONS\x1b[0m
        * version: only update if version matches (default: -1)

\x1b[1mEXAMPLES\x1b[0m
        > zero /foo
        > zero /foo 3

        """
        self.set(params.path, None, version=params.version)
\x1b[1mNAME\x1b[0m
        zero - Set the znode's to None (no bytes)

\x1b[1mSYNOPSIS\x1b[0m
        zero <path> [version]

\x1b[1mOPTIONS\x1b[0m
        * version: only update if version matches (default: -1)

\x1b[1mEXAMPLES\x1b[0m
        > zero /foo
        > zero /foo 3