code: function AsyncHelpers(options) {
    if (!(this instanceof AsyncHelpers)) {
      return new AsyncHelpers(options);
    }
    this.options = Object.assign({}, options);
    this.prefix = this.options.prefix || '{$ASYNCID$';
    this.globalCounter = AsyncHelpers.globalCounter++;
    this.helpers = {};
    this.counter = 0;
    this.prefixRegex = toRegex(this.prefix);
  }
docs: Create a new instance of AsyncHelpers
  
  ```js
  var asyncHelpers = new AsyncHelpers();
  ```
  
  @param {Object} `options` options to pass to instance
  @return {Object} new AsyncHelpers instance
  @api public