export interface MentionToken {
    userID: string;
    displayName: string;
    isAtAll: boolean;
    start: number;
    length: number;
}
export interface EditRange {
    editStart: number;
    deletedLength: number;
    insertedLength: number;
}
export declare const countMentionedUsers: (tokens: MentionToken[]) => number;
export declare const computeEditRange: (oldValue: string, newValue: string) => EditRange;
export interface UseMentionTokensResult {
    tokens: MentionToken[];
    addToken: (token: MentionToken) => void;
    onValueChange: (oldValue: string, newValue: string) => void;
    resetTokens: () => void;
}
export declare const useMentionTokens: () => UseMentionTokensResult;
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