public void setNextSigningKeyLength(String nextSigningKeyLength) {
        this.nextSigningKeyLength = nextSigningKeyLength;
    }
<p>
[Easy DKIM] The key length of the future DKIM key pair to be generated. This can be changed at most once per day.
</p>

@param nextSigningKeyLength
       [Easy DKIM] The key length of the future DKIM key pair to be generated. This can be changed at most once
       per day.
@see DkimSigningKeyLength
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/DkimAttributes.java