protected function getSigner($signerName)
    {
        if (empty($this->signers[$signerName])) {
            throw new \Exception(sprintf('Signer %s doesnt exist', $signerName));
        }

        return $this->signers[$signerName];
    }
protected function getSigner($signerName)
    {
        if (empty($this->signers[$signerName])) {
            throw new \Exception(sprintf('Signer %s doesnt exist', $signerName));
        }

        return $this->signers[$signerName];
    }
protected function getSigner ( $ signerName ) { if ( empty ( $ this -> signers [ $ signerName ] ) ) { throw new \ Exception ( sprintf ( 'Signer %s doesnt exist' , $ signerName ) ) ; } return $ this -> signers [ $ signerName ] ; }
Get a signer

@param string $signerName

@return SignerInterface

@throws \Exception
Get a signer