marshal

    cfunction

    (marshal x &opt reverse-lookup buffer)
    
    Marshal a value into a buffer and return the buffer. The buffer can
    the later be unmarshalled to reconstruct the initial value. Optionally,
    one can pass in a reverse lookup table to not marshal aliased values
    that are found in the table. Then a forwardlookup table can be used to
    recover the original value when unmarshalling.