hts_set_log_level(htsLogLevel.HTS_LOG_TRACE);
hts_log_trace(__FUNCTION__, "Test: trace");
hts_log_debug(__FUNCTION__, "Test: debug");
hts_log_info(__FUNCTION__, "Test: info");
hts_log_warning(__FUNCTION__,"Test: warning");
hts_log_error(__FUNCTION__, "Test: error");
! Logs an event with severity HTS_LOG_TRACE and default context. Parameters: format, ...