code: def get_metadata(self, namespace, name):
          "Retrieve metadata"
  
          if namespace in NAMESPACES:
              namespace = NAMESPACES[namespace]
  
          return self.metadata[namespace].get(name, []f get_metadata(self, namespace, name):
          "Retrieve metadata"
  
          if namespace in NAMESPACES:
              namespace = NAMESPACES[namespace]
  
          return self.metadata[namespace].get(name, [])
docs: Retrieve metadata