code: def dumpb(obj, container_count=False, sort_keys=False, no_float32=True, default=None):
      
      with BytesIO() as fp:
          dump(obj, fp, container_count=container_count, sort_keys=sort_keys, no_float32=no_float32, default=default)
          return fp.getvalue()
docs: Returns the given object as UBJSON in a bytes instance. See dump() for
         available arguments.