merged.LastSec = l.LastSec
	} else {
		l.forwardTo(o.LastSec)
		merged.LastSec = o.LastSec
	}

	for i := range merged.Totals {
		merged.Totals[i] = AccElem{
			Total: l.Totals[i].Total + o.Totals[i].Total,
			N:     l.Totals[i].N + o.Totals[i].N,
			Size:  l.Totals[i].Size + o.Totals[i].Size,
		}
	}
	return merged
}

// Add  a new duration data
func (l *lastMinuteLatency) add(t time.Duration) {

		"Total number of bytes failed at least once to replicate in the last hour on a bucket",
		bucketL, targetArnL)
	bucketReplLastHrFailedCountMD = NewGaugeMD(bucketReplLastHrFailedCount,
		"Total number of objects which failed replication in the last hour on a bucket",
		bucketL, targetArnL)
	bucketReplLastMinFailedBytesMD = NewGaugeMD(bucketReplLastMinFailedBytes,

	for k, v := range o.ErrCounts {
		n.ErrCounts[k] += v
	}
	return n
}

// SRStats has replication stats at site level
type SRStats struct {
	// Total Replica size in bytes
	ReplicaSize int64 `json:"replicaSize"`
	// Total Replica received
	ReplicaCount int64                `json:"replicaCount"`
	M            map[string]*SRStatus `json:"srStatusMap"`

## Um aplicativo com callbacks

Vamos ver tudo isso com um exemplo.

Imagine que você tem um aplicativo que permite criar faturas.

Essas faturas terão um `id`, `title` (opcional), `customer` e `total`.

O usuário da sua API (um desenvolvedor externo) criará uma fatura em sua API com uma solicitação POST.

Então sua API irá (vamos imaginar):

* Enviar uma solicitação de pagamento para o desenvolvedor externo.

		t.Errorf("no error should happen, but got %v", err)
	}

	if name != "groupby" || total != 60 {
		t.Errorf("name should be groupby, but got %v, total should be 60, but got %v", name, total)
	}

	if err := DB.Model(&User{}).Select("name, sum(age) as total").Where("name LIKE ?", "groupby%").Group("name").Having("name = ?", "groupby1").Row().Scan(&name, &total); err != nil {

        return 1;
    }

    /**
     * Returns the total number of records.
     *
     * @return The total number of records.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total number of records.
     */

    }

    /**
     * Returns the total number of records.
     *
     * @return The total number of records.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total number of records.
     */

        contentSize = 0;
        processingTime = 0;
    }

    /**
     * Gets the total content size of all documents in this list.
     *
     * @return the total content size in bytes
     */
    public long getContentSize() {
        return contentSize;
    }

    /**
     * Adds to the total content size of this document list.
     *
     * @param contentSize the content size to add in bytes
     */

        return DEFAULT_CURRENT_PAGE_NUMBER;
    }

    /**
     * Gets the total number of records.
     * @return The total record count.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     * @param allRecordCount The total record count.
     */
    public void setAllRecordCount(final int allRecordCount) {

    }

    /**
     * Returns the total number of records.
     *
     * @return The total number of records.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total number of records.
     */