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import type {Expect, Equal} from '@type-challenges/utils';import {HttpMethod} from '../types/options.js';
export const supportsStreams = (() => {	let duplexAccessed = false;	let hasContentType = false;	const supportsReadableStream = typeof globalThis.ReadableStream === 'function';
	if (supportsReadableStream) {		hasContentType = new globalThis.Request('https://a.com', {			body: new globalThis.ReadableStream(),			method: 'POST',			// @ts-expect-error - Types are outdated.			get duplex() {				duplexAccessed = true;				return 'half';			},		}).headers.has('Content-Type');	}
	return duplexAccessed && !hasContentType;})();
export const supportsAbortController = typeof globalThis.AbortController === 'function';export const supportsFormData = typeof globalThis.FormData === 'function';
export const requestMethods = ['get', 'post', 'put', 'patch', 'head', 'delete'] as const;
const validate = <T extends Array<true>>() => undefined as unknown as T;validate<[	Expect<Equal<typeof requestMethods[number], HttpMethod>>,]>();
export const responseTypes = {	json: 'application/json',	text: 'text/*',	formData: 'multipart/form-data',	arrayBuffer: '*/*',	blob: '*/*',} as const;
// The maximum value of a 32bit int (see issue #117)export const maxSafeTimeout = 2_147_483_647;
export const stop = Symbol('stop');