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- import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
- /**
- * Given an AsyncIterable and a callback function, return an AsyncIterator
- * which produces values mapped via calling the callback function.
- */
- export declare function mapAsyncIterator<T, U, R = undefined>(
- iterable: AsyncGenerator<T, R, void> | AsyncIterable<T>,
- callback: (value: T) => PromiseOrValue<U>,
- ): AsyncGenerator<U, R, void>;
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