}

		c := cache.Default()
		outputID, _, err := c.Put(a.actionID, r)
		r.Close()
		if err != nil {
			return fmt.Errorf("error adding target to cache: %w", err)
		}
		if cfg.BuildX {
			sh.ShowCmd("", "%s # internal", joinUnambiguously(str.StringList("cp", a.Target, c.OutputFile(outputID))))
		}
	}

	return nil
}

  let description = [{
Read
[the section on segmentation](https://tensorflow.org/api_docs/python/tf/math#Segmentation)
for an explanation of segments.

Computes a tensor such that
\\(output_i = \max_j(data_j)\\) where `max` is over `j` such
that `segment_ids[j] == i`.

If the max is empty for a given segment ID `i`, `output[i] = 0`.