Does sfrmaker work with mf6 disv grids?

I have been working my way through this package the past week or so and things look promising. I am trying to intersect my stream shape file with an unstructured grid that is created with gridgen.exe. I am using a quadtree mesh. I am stuck at defining the grid that goes into `stream_lines.to_sfr(grid, model=mdl) `. It works fine with the StructuredGrid.from_sr package when I am using a structured grid. However, when I try UnstructuredGrid.from_dataframe(), I get an error that says AssertionError: structured=False can only be specified for mfusg models. Does sfrmaker work with gridgen quadtree mesh grids and if so do you have any examples? Thanks!