export declare const MAX_PINNED_USERS = 4;
export type SetPinnedUsersForEveryoneAction = {
    type: 'SET-PINNED-USERS-FOR-EVERYONE';
    payload: {
        userIds: number[];
    };
    timestamp: number;
};
export type PinForEveryoneAction = {
    type: 'PIN-FOR-EVERYONE';
    payload: {
        userId: number;
    };
    timestamp: number;
};
export type UnpinForEveryoneAction = {
    type: 'UNPIN-FOR-EVERYONE';
    timestamp: number;
};
export type PinAction = SetPinnedUsersForEveryoneAction | PinForEveryoneAction | UnpinForEveryoneAction;
export type PinState = {
    pinnedUserIds: number[];
    lastActionTimestamp: number;
};
