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buffered-async-iterable

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/** * @param {unknown} value * @returns {value is Iterable<unknown>} */ export const isIterable = (value) => Boolean(value && typeof value === 'object' && Symbol.iterator in value); /** * @param {unknown} value * @returns {value is AsyncIterable<unknown>} */ export const isAsyncIterable = (value) => Boolean(value && typeof value === 'object' && Symbol.asyncIterator in value); /** * @template Values * @param {unknown} value * @param {Values[]} list * @returns {value is Values} */ export const isPartOfArray = (value, list) => list.includes(/** @type {Values} */ (value));