@Override
  public Certificates getAvailableCertificates(Integer pageNo, Integer perPage)
      throws DigitalOceanException, RequestUnsuccessfulException {
    validatePageNo(pageNo);

    return (Certificates) perform(new ApiRequest(ApiAction.AVAILABLE_CERTIFICATES, pageNo, perPage))
        .getData();
  }
@ Override public Certificates getAvailableCertificates ( Integer pageNo , Integer perPage ) throws DigitalOceanException , RequestUnsuccessfulException { validatePageNo ( pageNo ) ; return ( Certificates ) perform ( new ApiRequest ( ApiAction . AVAILABLE_CERTIFICATES , pageNo , perPage ) ) . getData ( ) ; }
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