import { MethodSchema } from './manifest';
export declare const schema: MethodSchema;
/**
 * Read content from a URL.
 *
 * For HTTP/S URLs this function complies with [RFC 7234](http://httpwg.org/specs/rfc7234.html)
 * for caching of requests. Use `force` to ignore any cached content that may
 * exist on the machine for the URL.
 *
 * @param input The URL to read.
 * @param cache Should any cached content be ignored? For remote URLs only.
 * @returns The content that was read.
 */
export declare function read(input: string, cache?: boolean): Promise<[string, string | undefined]>;
export declare namespace read {
    var schema: MethodSchema;
}
/**
 * Read content from standard input
 *
 * @returns The content
 */
export declare function readStdio(): Promise<string>;
/**
 * Read content from the local file system
 *
 * @param filePath The path to the file to read
 * @returns A tuple of the content and its format
 */
export declare function readFile(filePath: string): Promise<[string, string | undefined]>;
/**
 * Read content from a HTTP/S URL
 *
 * The format is determined from the `Content-Type` header if present,
 * guessed from the URL's path segment if not.
 *
 * @param url The URL to fetch
 * @param caching Should a cache be used to retrieve / store content.
 * @returns A tuple of the content and its format
 */
export declare function readHttp(url: string, caching?: boolean): Promise<[string, string | undefined]>;