public JWTOptionsInput withPublicKey(String publicKey) {
        setPublicKey(publicKey);
        return this;
    }
<p>
Element of the JWT assertion used by the cluster to verify JWT signatures.
</p>

@param publicKey
       Element of the JWT assertion used by the cluster to verify JWT signatures.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-opensearch/src/main/java/com/amazonaws/services/opensearch/model/JWTOptionsInput.java