def v70_from_params_asdict(v70_from_params):
  """Converts a sparse `v70_from_params` array to a dict."""
  dict_v70_from_params = {}
  for i in range(v70_from_params.shape[0]):
    for j in range(v70_from_params.shape[1]):
      v = v70_from_params[i, j]
      if v:
        dict_v70_from_params[(i, j)] = str(v)
  return dict_v70_from_params