Function rd_kafka_interceptor_add_on_commit 

pub unsafe extern "C" fn rd_kafka_interceptor_add_on_commit(
    rk: *mut rd_kafka_s,
    ic_name: *const i8,
    on_commit: Option<unsafe extern "C" fn(*mut rd_kafka_s, *const rd_kafka_topic_partition_list_s, rd_kafka_resp_err_t, *mut c_void) -> rd_kafka_resp_err_t>,
    ic_opaque: *mut c_void,
) -> rd_kafka_resp_err_t