export interface SubjectErrorOptions {
    message: string;
    code?: string;
    field?: string;
    row?: any;
}
export declare class SubjectError extends Error {
    code: string;
    field?: string | undefined;
    row?: any | undefined;
    constructor(message: string, code?: string, field?: string | undefined, row?: any | undefined);
    static from(options: SubjectErrorOptions): SubjectError;
}
export declare function trimText(value: unknown): string;
export declare function trimCommaSeparatedText(value: unknown): string;
export interface TagItem {
    tagId: string | number;
    tagName: string;
    knowledgePointInfos?: KnowledgePointInfo[];
}
export interface KnowledgePointInfo {
    knowledgePointId: string | number;
    knowledgePointName: string;
}
export interface Category {
    categoryId: string | number;
    title: string;
}
export interface SearchResult {
    id: string | number;
    title: string;
    value: string;
    [key: string]: any;
}
export interface Resource {
    resourceType: 1 | 2;
    resource: {
        url?: string;
        middle?: string;
        videoId?: string;
        [key: string]: any;
    };
}