code: function create(stylesObject) {
    const stylesToClasses = {};
    const styleNames = Object.keys(stylesObject);
    const sharedState = globalCache.get(GLOBAL_CACHE_KEY) || {};
    const { namespace = '' } = sharedState;
    styleNames.forEach((styleName) => {
      const className = getClassName(namespace, styleName);
      stylesToClasses[styleName] = className;
    });
    return stylesToClasses;
  }
docs: Function required as part of the react-with-styles interface. Parses the styles provided by
  react-with-styles to produce class names based on the style name and optionally the namespace if
  available.
  
  stylesObject {Object} The styles object passed to withStyles.
  
  Return an object mapping style names to class names.