Imports of package internal

PathSynopsis
go.opentelemetry.io/otel/attributePackage attribute provides key and value attributes.
go.opentelemetry.io/otel/sdk/metric/aggregation
go.opentelemetry.io/otel/sdk/metric/metricdata
sortPackage sort provides primitives for sorting slices and user-defined collections.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
timePackage time provides functionality for measuring and displaying time.