/** @alpha */
export declare const entityLinguistCard: import("@backstage/frontend-plugin-api").ExtensionDefinition<{
    filter?: string | undefined;
}>;
/** @alpha */
export declare const linguistApi: import("@backstage/frontend-plugin-api").ExtensionDefinition<{}>;
/** @alpha */
declare const _default: import("@backstage/frontend-plugin-api").BackstagePlugin<{}, {}>;
export default _default;