Security upgrades

node_modules/@material-ui/styles/ServerStyleSheets/ServerStyleSheets.d.ts

@@ -0,0 +1,11 @@
+import * as React from 'react';
+import { StylesProviderProps } from '../StylesProvider';
+
+declare class ServerStyleSheets {
+  constructor(options?: object);
+  collect(children: React.ReactNode, options?: object): React.ReactElement<StylesProviderProps>;
+  toString(): string;
+  getStyleElement(props?: object): React.ReactElement;
+}
+
+export default ServerStyleSheets;