public SAMLOptionsInput withSubjectKey(String subjectKey) {
        setSubjectKey(subjectKey);
        return this;
    }
<p>
Element of the SAML assertion to use for the user name. Default is <code>NameID</code>.
</p>

@param subjectKey
       Element of the SAML assertion to use for the user name. Default is <code>NameID</code>.
@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/SAMLOptionsInput.java