Imports of package xds

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
google.golang.org/grpc/attributesPackage attributes defines a generic key/value store used in various gRPC components.
google.golang.org/grpc/internalPackage internal contains gRPC-internal code, to avoid polluting the godoc of the top-level grpc package.
google.golang.org/grpc/internal/xds/clientsPackage clients provides implementations of the clients to interact with xDS and LRS servers.
google.golang.org/grpc/resolverPackage resolver defines APIs for name resolution in gRPC.