createSignature() public static method

creates a full array signature of a valid gateway request
public static createSignature ( ) : array
return array gateway request signature format
 /**
  * create signatures for different call types
  * @ignore
  */
 public static function init()
 {
     self::$_createCustomerSignature = [self::$_transparentRedirectKeys, ['customer' => CustomerGateway::createSignature()]];
     self::$_updateCustomerSignature = [self::$_transparentRedirectKeys, 'customerId', ['customer' => CustomerGateway::updateSignature()]];
     self::$_transactionSignature = [self::$_transparentRedirectKeys, ['transaction' => TransactionGateway::createSignature()]];
     self::$_createCreditCardSignature = [self::$_transparentRedirectKeys, ['creditCard' => CreditCardGateway::createSignature()]];
     self::$_updateCreditCardSignature = [self::$_transparentRedirectKeys, 'paymentMethodToken', ['creditCard' => CreditCardGateway::updateSignature()]];
 }