[Freeswitch-dev] Newbie question on switch_event_dup() and memory alloc/free in general

A lot of FreeSwitch core APIs, such as switch_event_dup(switch_event_t **event, switch_event_t *todup), returns a pointer to an allocated memory chunk, should the caller always releases that memory chunk by calling a proper API, such as switch_event_destroy(switch_event_t **event)? I could not find any documentation to detail the general rule regarding memory allocation/free when using the core APIs. Thank you for your attention!