SheetsManager.js.flow
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			// @flow
			import type StyleSheet from './StyleSheet'

			declare export default class SheetsManager {
			length: number;
			sheets: WeakMap<
			Object,
			{
			refs: number,
			sheet: StyleSheet
			}
			>;
			size: number;
			get(key: Object): ?StyleSheet;
			add(key: Object, sheet: StyleSheet): void;
			manage(key: Object): ?StyleSheet;
			unmanage(key: Object): void;
			}

rOACCT/node_modules/jss/src/SheetsManager.js.flow2e74391c0d8edev