pub unsafe extern "C" fn rd_kafka_metadata(
rk: *mut rd_kafka_t,
all_topics: c_int,
only_rkt: *mut rd_kafka_topic_t,
metadatap: *mut *const rd_kafka_metadata,
timeout_ms: c_int,
) -> rd_kafka_resp_err_t
pub unsafe extern "C" fn rd_kafka_metadata(
rk: *mut rd_kafka_t,
all_topics: c_int,
only_rkt: *mut rd_kafka_topic_t,
metadatap: *mut *const rd_kafka_metadata,
timeout_ms: c_int,
) -> rd_kafka_resp_err_t