Memory leak in C library

Valgrind reports that allocated memory does not get removed:
==25320== 192 (176 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record 200 of 252
==25320== at 0x4C29DB4: calloc (in /usr/lib/valgrind/
==25320== by 0xB5101BB: lcb_create_libev_io_opts (plugin-libev.c:363)
==25320== by 0x7EC36BD: create_v1 (iofactory.c:232)
==25320== by 0x7EC3843: lcb_create_io_ops (iofactory.c:205)
Is there a counterpart for the lcb_create_io_ios() function that should be called to free() the allocated memory that I am not aware of?

If you manually create an io ops structure you should call the destructor on the io ops when you’re done using it (it is part of the io-ops structure)

Thanks for your answer. It turns out that there is a lcb_destroy_io_ops() function that I found in a .h file and that I missed (maybe overlooked) on the website.
Calling it solves the memory leak.