VRT AttributeError about geowombat HOT 5 CLOSED

with rio.open(data.filename) as src:

    with WarpedVRT(src,
                   src_crs=src.crs,                         # the original CRS
                   crs=data.crs,                            # the transformed CRS
                   src_transform=src.transform,             # the original transform
                   transform=data.transform,                # the new transform
                   dtype=data.gw.dtype,
                   resampling=resampling,
                   nodata=nodata,
                   init_dest_nodata=init_dest_nodata,
                   warp_mem_limit=warp_mem_limit) as vrt:

        rio_shutil.copy(vrt, filename, driver='VRT')`

with gw.open(glob('./data/NDWI/*2020*tif'), band_names=['NDWI'],
             time_names=['01-01-2020'],
             bounds_by='union',mosaic=True,
             num_workers=5) as ds:
       print(ds)
       # Write the data to a VRT
       ds.gw.to_vrt('./data/NDWI/NDWI_01-01-2020.vrt')

  File "/home/mmann1123/anaconda3/envs/geowombat/lib/python3.7/site-packages/geowombat/core/io.py", line 366, in to_vrt
    with rio.open(data.gw.filename) as src:

AttributeError: 'GeoWombatAccessor' object has no attribute 'filename'