Sometimes we want to keep the randomize seed the same in a single agent, such as below scenario:

Please notice the the boots colors, they are different and been randomized by our render tool. But we want them be pairing the same color due to they are in the same agent

We just need to assign the agent seed attribute to the left and right boot, so when our system randomize, the boots will use the same seed if they from same agent, but the agent seed will be different among different agents.