We don’t currently have the feature or relationship weights implemented in the FastRP implementation currently. FastRP would be the easier one to incorporate this information between Node2Vec and FastRP.
For edge weights, you could multiply by e.weight when summing the source vectors here.
It would look something like this:
SELECT s FROM verts:s -(e_type:e)- :t
ACCUM
t.@embedding_arr += e.weight*s.@embedding_arr
POST-ACCUM
...
Depending upon the use case of your embeddings, you may also want to consider Graph Neural Networks, which you can now easily train with the preview version of the ML Workbench: TigerGraph | Machine Learning Workbench.