}, c.prototype.getAttachmentPieceForAttachment = function(t3) {
            var e2, n2, i2, o2;
            for (o2 = this.getAttachmentPieces(), e2 = 0, n2 = o2.length; n2 > e2; e2++)
              if (i2 = o2[e2], i2.attachment === t3)
                return i2;