import { AnyExtensionDataRef, ExtensionDataContainer, ExtensionDataRef, ExtensionDataValue } from '@backstage/frontend-plugin-api';
export declare function createExtensionDataContainer<UData extends AnyExtensionDataRef>(values: Iterable<UData extends ExtensionDataRef<infer IData, infer IId> ? ExtensionDataValue<IData, IId> : never>, declaredRefs?: ExtensionDataRef<any, any, any>[]): ExtensionDataContainer<UData>;