public void setLastAccessedAt(java.util.Date lastAccessedAt) {
        this.lastAccessedAt = lastAccessedAt;
    }
<p>
The timestamp when the speaker was last accessed for enrollment, re-enrollment or a successful authentication.
This timestamp is accurate to one hour.
</p>

@param lastAccessedAt
       The timestamp when the speaker was last accessed for enrollment, re-enrollment or a successful
       authentication. This timestamp is accurate to one hour.
aws-java-sdk-voiceid/src/main/java/com/amazonaws/services/voiceid/model/SpeakerSummary.java