import { ControlCode } from './ControlCode';
import { QualifiedChannelId } from './QualifiedChannelId';
export declare class FrameHeader {
    readonly code: ControlCode;
    private _channel?;
    /**
     * Initializes a new instance of the `FrameHeader` class.
     * @param code The kind of frame this is.
     * @param channel The channel that this frame refers to or carries a payload for.
     */
    constructor(code: ControlCode, channel?: QualifiedChannelId);
    /** The channel that this frame refers to or carries a payload for. */
    get channel(): QualifiedChannelId | undefined;
    /**
     * Gets the channel that this frame refers to or carries a payload for.
     */
    get requiredChannel(): QualifiedChannelId;
    /** Changes the channel.source property to reflect the opposite perspective (i.e. remote and local values switch). */
    flipChannelPerspective(): void;
}