public function setRecipientVariables(string $recipient, array $recipientVariables): self
    {
        $this->recipientVariables[$recipient] = $recipientVariables;

        return $this;
    }
public function setRecipientVariables(string $recipient, array $recipientVariables): self
    {
        $this->recipientVariables[$recipient] = $recipientVariables;

        return $this;
    }
public function setRecipientVariables ( string $ recipient , array $ recipientVariables ) : self { $ this -> recipientVariables [ $ recipient ] = $ recipientVariables ; return $ this ; }
Sets the recipient variables for the recipient specified.

@param string   $recipient
@param string[] $recipientVariables

@return $this
Sets the recipient variables for the recipient specified .