src/common/InstanceWrapperTrait.php
public function callMethodInWrappedInst($method, $args)
    {
        $i = $this->getWrappedInst();
        if (method_exists($i, $method)) {
            return call_user_method_array($method, $i, $args);
        }
        throw new UnknownMethodException('Calling unknown method: ' . get_class($i) . "::$method()");
    }
public function callMethodInWrappedInst($method, $args)
    {
        $i = $this->getWrappedInst();
        if (method_exists($i, $method)) {
            return call_user_method_array($method, $i, $args);
        }
        throw new UnknownMethodException('Calling unknown method: ' . get_class($i) . "::$method()");
    }
Calls the method in the wrapped instance

This method is used internally in order to call a method
of the wrapped interface. Usually this function is called
by the magic function __call if the Wrapper does implement
the called method.

@param type $method
@param type $args