import { ColumnSpec } from '@xh/hoist/cmp/grid/columns';
export declare const createdTime: ColumnSpec;
export declare const isOpen: ColumnSpec;
export declare const key: ColumnSpec;
export declare const lastReceivedTime: ColumnSpec;
export declare const lastSentTime: ColumnSpec;
export declare const receivedMessageCount: ColumnSpec;
export declare const sentMessageCount: ColumnSpec;