1 | /**
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2 | * Determines whether the given async-iterable is empty.
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3 | *
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4 | * @export
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5 | * @template T The type of elements in the source sequence.
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6 | * @param {AsyncIterable<T>} source The source async-iterable to determine whether it is empty.
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7 | * @param {AbortSignal} [signal] An optional abort signal to cancel the operation.
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8 | * @returns {Promise<boolean>} Returns a promise containing true if the sequence is empty, otherwise false.
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9 | */
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10 | export declare function isEmpty<T>(source: AsyncIterable<T>, signal?: AbortSignal): Promise<boolean>;
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