public int offset()
    {
        return offset;
    }
The offset for this token in the message.

@return the offset of this Token. A value of 0 means the node has no relevant offset. A value of
{@link Token#VARIABLE_LENGTH} means this node's true offset is dependent on variable length
fields ahead of it in the encoding.
sbe-tool/src/main/java/uk/co/real_logic/sbe/ir/Token.java