pub unsafe extern "C" fn rd_kafka_conf_set_ssl_cert(
    conf: *mut rd_kafka_conf_t,
    cert_type: rd_kafka_cert_type_t,
    cert_enc: rd_kafka_cert_enc_t,
    buffer: *const c_void,
    size: size_t,
    errstr: *mut c_char,
    errstr_size: size_t
) -> rd_kafka_conf_res_t