Currently, the serialization format supports subgraphs in the form of graphs property. This only works at the depth of one: there is no way to address subgraphs that are nested more deeply, since an absolute id (the hashtag of the URL) is used.
One approach here might be re-bundling: when about to add another layer of subgraphs, flatten all other ones (perhaps with some prefix), so that there's only one layer still.
Currently, the serialization format supports subgraphs in the form of
graphs
property. This only works at the depth of one: there is no way to address subgraphs that are nested more deeply, since an absolute id (the hashtag of the URL) is used.