// @flow
import type {ToCssOptions} from './flow-types'
import type StyleSheet from './StyleSheet'

declare export default class SheetsRegistry {
  index: number;
  registry: Array<StyleSheet>;
  add(sheet: StyleSheet): void;
  reset(): void;
  remove(sheet: StyleSheet): void;
  toString(options?: {|attached?: boolean, ...ToCssOptions|}): string;
}