public override async Task <IEnumerable <KeyValuePair <string, int> > > ExecuteAsync(GetRelationshipTypesQuery query, CancellationToken cancellationToken = new CancellationToken())
 {
     return(await _apiClient.Get <IEnumerable <KeyValuePair <string, int> > >("/api/attributes"));
 }
 public override Task <IEnumerable <KeyValuePair <string, int> > > ExecuteAsync(GetRelationshipTypesQuery query, CancellationToken cancellationToken = new CancellationToken())
 {
     throw new NotImplementedException();
 }