import { SecretChatStateUnion } from './index';
export declare type SecretChatUnion = SecretChat;
/** Represents a secret chat */
export interface SecretChat {
    _: 'secretChat';
    /** Secret chat identifier */
    id: number;
    /** Identifier of the chat partner */
    userId: number;
    /** State of the secret chat */
    state: SecretChatStateUnion;
    /** True, if the chat was created by the current user; otherwise false */
    isOutbound: boolean;
    /** Current message Time To Live setting (self-destruct timer) for the chat, in seconds */
    ttl: number;
    /**
     * Hash of the currently used key for comparison with the hash of the chat partner's
     * key. This is a string of 36 bytes, which must be used to make a 12x12 square image
     * with a color depth of 4. The first 16 bytes should be used to make a central 8x8
     * square, while the remaining 20 bytes should be used to construct a 2-pixel-wide border
     * around that square. Alternatively, the first 32 bytes of the hash can be converted
     * to the hexadecimal format and printed as 32 2-digit hex numbers
     */
    keyHash: string;
    /**
     * Secret chat layer; determines features supported by the other client. Video notes
     * are supported if the layer >= 66
     */
    layer: number;
}