public Content getSubject() {
        return this.subject;
    }
<p>
The subject line of the email. The subject line can only contain 7-bit ASCII characters. However, you can specify
non-ASCII characters in the subject line by using encoded-word syntax, as described in <a
href="https://tools.ietf.org/html/rfc2047">RFC 2047</a>.
</p>

@return The subject line of the email. The subject line can only contain 7-bit ASCII characters. However, you can
        specify non-ASCII characters in the subject line by using encoded-word syntax, as described in <a
        href="https://tools.ietf.org/html/rfc2047">RFC 2047</a>.
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/Message.java