export declare const CURRENT_ATTACHMENT_SCHEMA_VERSION = 1;
/** Runtime-backed version for graph attachment records. */
export default class AttachmentSchemaVersion {
    private readonly value;
    constructor(value: number);
    /** Returns the numeric attachment schema version. */
    toNumber(): number;
    /** Compares two attachment schema versions by runtime value. */
    equals(other: AttachmentSchemaVersion): boolean;
    /** Returns the current attachment schema version. */
    static current(): AttachmentSchemaVersion;
}
