@type t() :: %Envoy.Admin.V2alpha.ClustersConfigDump.StaticCluster{
__unknown_fields__: [
{field_number :: integer(), Protobuf.Wire.Types.wire_type(),
value :: term()}
],
cluster: Google.Protobuf.Any.t() | nil,
last_updated: Google.Protobuf.Timestamp.t() | nil
}