Common/Model/Notify.php
public function addCopy(Recipient $copy)
    {
        if (!$this->copies->contains($copy)) {
            $this->copies->add($copy);
        }

        return $this;
    }
public function addCopy(Recipient $copy)
    {
        if (!$this->copies->contains($copy)) {
            $this->copies->add($copy);
        }

        return $this;
    }
Adds the copy.

@param Recipient $copy

@return Notify