Mockery\Container::rememberMock PHP Method

    public function rememberMock(\Mockery\MockInterface $mock)
    {
        if (!isset($this->_mocks[get_class($mock)])) {
            $this->_mocks[get_class($mock)] = $mock;
        } else {
            /**
             * This condition triggers for an instance mock where origin mock
             * is already remembered
             */
            $this->_mocks[] = $mock;
        }
        return $mock;
    }