Imports istio.io/istio/pkg/mcp/server istio.io/istio/pkg/mcp/testing/monitoring istio.io/api/mcp/v1alpha1 istio.io/istio/pkg/mcp/testing/groups istio.io/istio/pkg/mcp/snapshot google.golang.org/grpc istio.io/istio/pkg/mcp/source Standard library imports fmt io net net/url