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	// @flow			// @flow

	import invariant from 'invariant';			import invariant from 'invariant';

	export type DeviceType = 'ios' \| 'android';			import { values } from '../utils/objects.js';

				const deviceTypesObj = Object.freeze({
				ios: 'ios',
				android: 'android',
				});
				export type DeviceType = $Values<typeof deviceTypesObj>;
	export type Platform = DeviceType \| 'web' \| 'windows' \| 'macos';			export type Platform = DeviceType \| 'web' \| 'windows' \| 'macos';

				export const deviceTypes: $ReadOnlyArray<DeviceType> = values(deviceTypesObj);

	export function isDeviceType(platform: ?string): boolean {			export function isDeviceType(platform: ?string): boolean {
	return platform === 'ios' \|\| platform === 'android';			return platform === 'ios' \|\| platform === 'android';
	}			}

	export function assertDeviceType(deviceType: ?string): DeviceType {			export function assertDeviceType(deviceType: ?string): DeviceType {
	invariant(			invariant(
	deviceType === 'ios' \|\| deviceType === 'android',			deviceType === 'ios' \|\| deviceType === 'android',
	'string is not DeviceType enum',			'string is not DeviceType enum',
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