how to check if a function module is client dependent

Hi

I am trying to find a way to know if an rfc enabled function module is client dependent or not.

For example, the function module SUSR_LOGIN_CHECK_RFC is client dependent.

One way could be by checking the presence of MANDT field in the ABAP code (?), but its time consuming.

I used to code SE37 and SE80 to check for client dependency, but cant find a fixed field or indicator for it.

any compact or good way to know for sure?