err = e
			break
		}

		// Make a copy of the buffer.
		buf := bytes.Clone(frag)
		fullBuffers = append(fullBuffers, buf)
		totalLen += len(buf)
	}

	totalLen += len(frag)
	return fullBuffers, frag, totalLen, err
}

// ReadBytes reads until the first occurrence of delim in the input,
// returning a slice containing the data up to and including the delimiter.

* `datetime.timedelta`:
    * Un `datetime.timedelta` de Python.
    * En requests y responses se representará como un `float` de segundos totales.