import { CommonContentClientConfig } from '../../config/CommonContentClientConfig';
/**
 * @hidden
 * Function that converts a fragment of content into a hydrated model class.
 * This function should return nothing if the fragment cannot be hydrated
 * by this function.
 */
export type ContentMapperFn = (fragment: any) => any;
/**
 * @hidden
 * ContentMapper provides functionality to convert simple JSON content into hydrated model classes
 * with helper functions. If a mapper is not defined for a schema it will remain as plain JSON.
 */
export declare class ContentMapper {
    private readonly config;
    protected mappers: ContentMapperFn[];
    constructor(config: CommonContentClientConfig);
    /**
     * Registers a custom model / fn to hydrate a specific schema
     * @param schema JSON schema ID or Regex that matches against the JSON schema ID
     * @param fn Model Class or Function that can convert the schema
     */
    addSchema(schema: string | RegExp, fn: ContentMapperFn): void;
    /**
     * Registers a custom function to hydrate content fragments
     * @param fn Mapper function
     */
    addCustomMapper(fn: ContentMapperFn): void;
    /**
     * Converts the provided content into hydrated model classes
     * @param content Content to convert
     */
    toMappedContent(content: any): any;
    /**
     * Converts a single fragment using the registered mappers
     * @param fragment Fragment to convert
     */
    protected mapFragment(fragment: any): any;
    /**
     * Registers built in mappers
     */
    protected registerBuiltInMappers(): void;
    /**
     * Converts _meta inside Content Items into a ContentMeta instance
     * @param fragment
     */
    protected convertContentMeta(fragment: any): any;
    /**
     * Converts content-link into an Content reference class instance
     * @param fragment
     */
    protected convertContentReference(fragment: any): any;
    /**
     * Converts image-link into an Image class instance
     * @param fragment
     */
    protected convertImage(fragment: any): any;
    /**
     * Converts image-link into an Image class instance
     * @param fragment
     */
    protected convertVideo(fragment: any): any;
}