/**
 * Activity types enum for type safety
 * @readonly
 * @enum {string}
 */
declare const ACTIVITY_TYPES: {
    readonly COMMENT: "comment";
    readonly LIKE: "like";
    readonly FOLLOW: "follow";
    readonly TIPS: "tips";
    readonly MENTION: "mention";
    readonly ASSIGN: "assign";
};
type ActivityTypeValues = (typeof ACTIVITY_TYPES)[keyof typeof ACTIVITY_TYPES];
interface UserData {
    did: string;
    fullName: string;
}
interface ActivityTarget {
    type: string;
    name: string;
}
interface Activity {
    type: ActivityTypeValues;
    target: ActivityTarget;
}
interface ExtraParams {
    linkColor?: string;
    [key: string]: any;
}
interface ActivityTitleProps {
    activity: Activity;
    users: UserData[];
    actors: string[];
    extra?: ExtraParams;
    mountPoint?: string;
}
/**
 * A hook that returns a formatted activity title with linked usernames
 * @param {Object} params - The parameters object
 * @param {keyof typeof ACTIVITY_TYPES} params.type - The activity type
 * @param {Object} params.target - The target object
 * @param {Array<{did: string, fullName: string}>} params.users - Array of user objects
 * @param {Object} params.extra - Extra parameters
 * @returns {React.ReactNode} Formatted title with linked usernames
 */
export default function useActivityTitle({ activity, users, actors, extra, mountPoint }: ActivityTitleProps): import("react/jsx-runtime").JSX.Element | null;
export {};
