src/Potter/Post/Type.php
public function setSingular($singular = null)
    {
        if (!empty($singular)) $this->singular = $singular;

        if (empty($this->singular)) $this->singular = Str::title($this->getPostType());

        return $this;
    }
public function setSingular($singular = null)
    {
        if (!empty($singular)) $this->singular = $singular;

        if (empty($this->singular)) $this->singular = Str::title($this->getPostType());

        return $this;
    }
@param string $singular

@return $this