public DescribedHostKey withHostKeyId(String hostKeyId) {
        setHostKeyId(hostKeyId);
        return this;
    }
<p>
A unique identifier for the host key.
</p>

@param hostKeyId
       A unique identifier for the host key.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-transfer/src/main/java/com/amazonaws/services/transfer/model/DescribedHostKey.java