src/Seo/SeoPage.php
public function addMeta($type, $name, /* string */ $content, array $extras = [])
    {
        if (!\is_string($content)) {
            @trigger_error(sprintf(
                'Passing meta content of type %s in %s is deprecated since version 2.x and will be unsupported in version 3. Please cast the value to a string first.',
                 \gettype($content),
                  __METHOD__
              ), E_USER_DEPRECATED);
        }

        if (!isset($this->metas[$type])) {
            $this->metas[$type] = [];
        }

        $this->metas[$type][$name] = [$content, $extras];

        return $this;
    }
public function addMeta($type, $name, /* string */ $content, array $extras = [])
    {
        if (!\is_string($content)) {
            @trigger_error(sprintf(
                'Passing meta content of type %s in %s is deprecated since version 2.x and will be unsupported in version 3. Please cast the value to a string first.',
                 \gettype($content),
                  __METHOD__
              ), E_USER_DEPRECATED);
        }

        if (!isset($this->metas[$type])) {
            $this->metas[$type] = [];
        }

        $this->metas[$type][$name] = [$content, $extras];

        return $this;
    }
{@inheritdoc}