export declare const MAX_SLASH_MATCHES = 20;
export interface CommandEntry {
    name: string;
    summary?: string;
    hint?: string;
}
export interface SlashCandidate {
    value: string;
    summary?: string;
    hint?: string;
}
export declare function isSubsequence(needle: string, haystack: string): boolean;
export declare function matchSlashCandidates(universe: readonly CommandEntry[], query: string, recentHistory?: readonly string[]): SlashCandidate[];