How to use the fela-utils.objectEach function in fela-utils

function extend(
  style: Object,
  type: StyleType,
  renderer: DOMRenderer | NativeRenderer
): Object {
  objectEach(style, (value, property) => {
    if (property === 'extend') {
      const extensions = [].concat(value)

      arrayEach(extensions, extension =>
        extendStyle(style, extension, extend, renderer)
      )
      delete style[property]
    } else if (isObject(value)) {
      // support nested extend as well
      style[property] = extend(value, type, renderer)
    }
  })

  return style
}