@Override
    public GetCertificateResult apply(GetCertificateRequest getCertificateRequest) {
        return client.getCertificate(getCertificateRequest);
    }
Makes a call to the operation specified by the waiter by taking the corresponding request and returns the
corresponding result

@param getCertificateRequest
       Corresponding request for the operation
@return Corresponding result of the operation
aws-java-sdk-acmpca/src/main/java/com/amazonaws/services/acmpca/waiters/GetCertificateFunction.java