src/Viserio/Component/Translation/TranslationManager.php
public function addDirectory(string $directory): self
    {
        if (! \in_array($directory, $this->directories, true)) {
            $this->directories[] = $directory;
        }

        return $this;
    }
public function addDirectory(string $directory): self
    {
        if (! \in_array($directory, $this->directories, true)) {
            $this->directories[] = $directory;
        }

        return $this;
    }
Add directory.

@param string $directory

@return $this