How can I receive return value from "get_inverse_kin_has_solution

I understand that the UR5e robot sends messages to the server at a certain frequency, and I’ve also successfully parsed the information within those 1220 bytes. However, how can I receive the return value of something like “get_inverse_kin_has_solution()”? This return value is likely not contained within the aforementioned 1220 bytes, right?