src/lib/methods/get.js
function get(store, key, options) {
  if (key === '' || key == null) {
    return store._data;
  }
  return doGet(store, key, options);
}
function get(store, key, options) {
  if (key === '' || key == null) {
    return store._data;
  }
  return doGet(store, key, options);
}
Retrieve value stored at 'key'
Empty/null/undefined 'key' returns all data
@param {DataStore} store
@param {String} [key]
@param {Object} [options]
- {Boolean} resolveReferences
@returns {*}