nl_tokens: Get a zset buffer .
pl_tokens: function zset ( obj , vonly ) { var vtype = this . <mask> ( 3 ) , key = ! vonly ? this . getStringBuffer ( obj . key ) : new Buffer ( 0 ) , length = obj . length !== undefined ? obj . length : Object . keys ( obj . value ) . length , len = this . getLengthEncoding ( length , false ) , value = this . object ( obj . value ) ; return Buffer . concat ( [ vtype , key , len , value ] , vtype . length + key . length + len . length + value . length ) }