code: def multi_argmin(
      values: np.ndarray, n_instances: int = 1
  ) -> np.ndarray:
      """
      return the indices and values of the n_instances smallest values.
  
      Args:
          values: Contains the values to be selected from.
          n_instances: Specifies how many indices and values to return.
      Returns:
          The indices and values of the n_instances smallest values.
      """
      indexes, index_values = multi_argmax(-values, n_instances)
      return indexes, -index_values
  
imports: import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: multi_argmin(values, n_instances) and returns: indexes,  unknown