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

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

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

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

        return $this;
    }
@param string $plural

@return $this