packages/components/src/components/date-picker/date-picker.js
function flattenOptions(options) {
  const o = {};
  // eslint-disable-next-line guard-for-in, no-restricted-syntax
  for (const key in options) {
    o[key] = options[key];
  }
  return o;
}
function flattenOptions(options) {
  const o = {};
  // eslint-disable-next-line guard-for-in, no-restricted-syntax
  for (const key in options) {
    o[key] = options[key];
  }
  return o;
}
`this.options` create-component mix-in creates prototype chain so that `options` given in constructor argument wins over the one defined in static `options` property 'Flatpickr' wants flat structure of object instead