Imports of package xtest

PathSynopsis
github.com/ydb-platform/ydb-go-sdk/v3/internal/empty
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
testingPackage testing provides support for automated testing of Go packages.
timePackage time provides functionality for measuring and displaying time.