import { Content } from "./content";
import { DataSchema, DataSchemaValue } from "wot-typescript-definitions";
import { ReadableStream } from "web-streams-polyfill";
export interface ContentCodec {
    getMediaType(): string;
    bytesToValue(bytes: Buffer, schema?: DataSchema, parameters?: {
        [key: string]: string | undefined;
    }): DataSchemaValue;
    valueToBytes(value: unknown, schema?: DataSchema, parameters?: {
        [key: string]: string | undefined;
    }): Buffer;
}
interface ReadContent {
    type: string;
    body: Buffer;
}
export declare class ContentSerdes {
    private static instance;
    static readonly DEFAULT: string;
    static readonly TD: string;
    static readonly JSON_LD: string;
    private codecs;
    private offered;
    static get(): ContentSerdes;
    static getMediaType(contentType: string): string;
    static getMediaTypeParameters(contentType: string): {
        [key: string]: string | undefined;
    };
    addCodec(codec: ContentCodec, offered?: boolean): void;
    getSupportedMediaTypes(): Array<string>;
    getOfferedMediaTypes(): Array<string>;
    isSupported(contentType: string): boolean;
    contentToValue(content: ReadContent, schema: DataSchema): DataSchemaValue | undefined;
    valueToContent(value: DataSchemaValue | ReadableStream, schema: DataSchema | undefined, contentType?: string): Content;
}
declare const _default: ContentSerdes;
export default _default;