/**
 * A stanza is a section of an age header. This is part of the low-level
 * {@link Recipient} and {@link Identity} APIs.
 */
export declare class Stanza {
    /**
     * All space-separated arguments on the first line of the stanza.
     * Each argument is a string that does not contain spaces.
     * The first argument is often a recipient type, which should look like
     * `example.com/...` to avoid collisions.
     */
    readonly args: string[];
    /**
     * The raw body of the stanza. This is automatically base64-encoded and
     * split into lines of 48 characters each.
     */
    readonly body: Uint8Array;
    constructor(args: string[], body: Uint8Array);
}
export declare function parseHeader(header: Uint8Array): {
    stanzas: Stanza[];
    MAC: Uint8Array;
    headerNoMAC: Uint8Array;
    rest: Uint8Array;
};
export declare function encodeHeaderNoMAC(recipients: Stanza[]): Uint8Array;
export declare function encodeHeader(recipients: Stanza[], MAC: Uint8Array): Uint8Array;