code: def add_namespaces(self, namespaces: Dict[str, str]) -> None:
          
          for prefix, uri in namespaces.items():
              self.add_namespace(prefix=prefix, uri=uri)
docs: Adds a prefix to uri mapping (namespace) in bulk
  
          Adds a namespace to replace any uris in iris with shortened prefixes
          in order to make the file more readable. Not techniqually necessary.
  
          Args: namespaces: prefix to uri mappings
  
          Example:
              add_namespaces(
                  namespaces = {
                      'my_prefix': 'http://myurl.org/',
                      'memo': 'http://memolibrary.org/memo#',
                  }
              )