C SDK 3.3.1 : lcb_cmd_destroy() functions

Will memory leak occur in C program if the below functions are not called after performing the respective Couchbase operation using C-SDK 3.3.1?

Get : lcb_cmdget_destroy()
Store : lcb_cmdstore_destroy()
Remove : lcb_cmdremove_destroy()
Query : lcb_cmdquery_destroy()
Ping : lcb_cmdping_destroy()

Does not using the above functions after performing the respective couchbase operation lead to Memory Leak / Out of Memory errors in C program?

If you are not calling them and experiencing memory leaks - that is a good assumption.