# Functions
CPUUsageToPerfData transforms NodesCPUSummary to PerfData.
CPUUsageToPerfDataWithLabels transforms NodesCPUSummary to PerfData with additional labels.
ResourceUsageToPerfData transforms ResourceUsagePerNode to PerfData.
ResourceUsageToPerfDataWithLabels transforms ResourceUsagePerNode to PerfData with additional labels.
# Constants
CurrentKubeletPerfMetricsVersion is the current kubelet performance metrics version.