// observedGeneration represents the .metadata.generation that the condition was set based upon.
  // For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
  // with respect to the current state of the instance.
  // +optional
  // +kubebuilder:validation:Minimum=0
  optional int64 observedGeneration = 3;