import type { ExternalActionSource } from "./extension-api.js";
/** Define a resolver-based source with no provider input. @public */
export declare function defineExternalActionSource<TConfig>(metadata: Pick<ExternalActionSource, "kind" | "label" | "description" | "describeEvent">): <TParams, TState>(resolve: (ctx: {
    /** @public */
    params: TParams;
    /** @public */
    state: TState;
}) => TConfig) => ExternalActionSource<TParams, TState>;
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