code: function parseOptions(options) {
      return {
          boolean: "boolean" in options ? options.boolean : true,
          number: "number" in options ? options.number : true,
          string: "string" in options ? options.string : true,
          allow: options.allow || []
      };
  }
docs: Parses and normalizes an option object.
  @param {Object} options - An option object to parse.
  @returns {Object} The parsed and normalized option object.