Pinq\Queries\Builders\Interpretations\IRequestInterpretation::interpretAverage PHP Метод

    public function interpretAverage($requestId, IFunction $projection = null);

 protected final function visitAverage(O\MethodCallExpression $expression)
 {
     $this->interpretation->interpretAverage($this->getId('average'), $this->getOptionalFunctionAt('average-function', 0, $expression));
     $this->interpretSourceAsScope($expression);
 }