var google.golang.org/grpc/internal.GRPCResolverSchemeExtraMetadata

2 uses

	google.golang.org/grpc/internal (current package)
		internal.go#L190: 	GRPCResolverSchemeExtraMetadata = "xds"

	google.golang.org/grpc
		stream.go#L451: 	if cs.cc.parsedTarget.URL.Scheme == internal.GRPCResolverSchemeExtraMetadata {