/**
 * Educational content types
 */
export type ContentType = "explanation" | "tutorial" | "practice_problem" | "quiz" | "reference_material";
/**
 * Default educational levels - can be overridden by configuration
 */
export declare const DEFAULT_EDUCATIONAL_LEVELS: string[];
/**
 * Educational level type - dynamically created from configuration
 */
export type EducationalLevel = string;
/**
 * Default subject areas - can be overridden by configuration
 */
export declare const DEFAULT_SUBJECTS: string[];
/**
 * Subject type - dynamically created from configuration
 */
export type Subject = string;
/**
 * Configuration options for the education module
 */
export interface EducationModuleConfig {
    levels?: string[];
    subjects?: string[];
}
/**
 * Education module configuration service
 */
export declare class EducationConfigService {
    private static instance;
    private _levels;
    private _subjects;
    private constructor();
    static getInstance(): EducationConfigService;
    /**
     * Configure the education module
     */
    configure(config: EducationModuleConfig): void;
    /**
     * Get configured educational levels
     */
    get levels(): string[];
    /**
     * Get configured subjects
     */
    get subjects(): string[];
    /**
     * Check if a level is valid
     */
    isValidLevel(level: string): boolean;
    /**
     * Check if a subject is valid
     */
    isValidSubject(subject: string): boolean;
}
/**
 * Educational content interface
 */
export interface EducationalContent {
    id: string;
    title: string;
    content: string;
    type: ContentType;
    subject: Subject;
    level: EducationalLevel;
    keywords: string[];
    createdAt: Date;
    updatedAt?: Date;
}
/**
 * Educational content resource model
 */
export declare class EducationalContentResource {
    id: string;
    title: string;
    content: string;
    type: ContentType;
    subject: Subject;
    level: EducationalLevel;
    keywords: string[];
    createdAt: Date;
    updatedAt?: Date;
}