			'use strict';

			const isStream = stream =>
			stream !== null &&
			typeof stream === 'object' &&
			typeof stream.pipe === 'function';

			isStream.writable = stream =>
			isStream(stream) &&
			stream.writable !== false &&
			typeof stream._write === 'function' &&
			typeof stream._writableState === 'object';

			isStream.readable = stream =>
			isStream(stream) &&
			stream.readable !== false &&
			typeof stream._read === 'function' &&
			typeof stream._readableState === 'object';

			isStream.duplex = stream =>
			isStream.writable(stream) &&
			isStream.readable(stream);

			isStream.transform = stream =>
			isStream.duplex(stream) &&
			typeof stream._transform === 'function' &&
			typeof stream._transformState === 'object';

			module.exports = isStream;

rOACCT/node_modules/is-stream/index.js
078f80032ad6drf-api-tracking

index.js
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