The input json will have new field for background loci
The user will specify #samples for foreground and background (-1 for all)
The background_only option will dictate whether the bed file in the background_loci field of the input json will have weight as zero or one for mnll loss (e.g. in case of training background model the weight for background_loci will be 1)
---- for integration
Add command line argument to pass background_only flag to the batch generator
----- for the generator
background_only
option will dictate whether the bed file in the background_loci field of the input json will have weight as zero or one for mnll loss (e.g. in case of training background model the weight for background_loci will be 1)---- for integration
background_only
flag to the batch generator