"id","type","name","key_type","int_value","str_value"
0,"metadata","trace_uuid","single","[NULL]","00000000-0000-0000-dcce-849205cfb03e" 
1,"metadata","trace_time_clock_id","single",6,"[NULL]"
2,"metadata","cr-playstore_version_code","single",101,"[NULL]"
3,"metadata","cr-enabled_categories","single","[NULL]","cat1,cat2,cat3"
4,"metadata","cr-background_tracing_metadata","single","[NULL]","CgUlDsAbXx2RziSz"
5,"metadata","cr-scenario_name_hash","single",3005533841,"[NULL]"
6,"metadata","cr-triggered_rule_name_hash","single",1595654158,"[NULL]"
7,"metadata","trace_size_bytes","single",64,"[NULL]"
8,"metadata","trace_type","single","[NULL]","proto"