add(record) {
    this.records.unshift(record);

    // If the number of records is exceeded, we truncate the records
    if (this.records.length > this.size)
      this.records.length = this.size;

    return this;
  }
Method adding a record to the archive

@param {object}  record - The record to store.
@return {Archive}       - The archive itself for chaining purposes.