// Aula 23 - Trabalhar com funções

year(process_start_time_seconds) == scalar(year())

sum(rate(node_cpu_seconds_total{mode!="idle",instance="localhost:9100"}[10m])) 
/
scalar(count(node_cpu_seconds_total{mode="idle",instance="localhost:9100"}))

sum without (cpu, mode)(rate(node_cpu_seconds_total{mode!="idle"}[10m]))
/
count without(cpu, mode)(node_cpu_seconds_total{mode="idle"})