rlayer argument in sample_background() function

[stangandaho]

Hi everyone,
Is there a way to provide rlayer argument to sample_background() if data partition method used is Conventional data partitioning methods (part_random) or Environmental and spatial cross-validation (part_senv) ? Those methods don't return raster grid that can be passed into sample_background() like in the documentation.

I'm using flexsdm v1.3.2