public String getInstanceName() {
        return this.instanceName;
    }
<p>
The unique name of the source instance (<code>Amazon_Linux-512MB-Virginia-1</code>). When this is defined, a
snapshot of the instance's system volume is created.
</p>
<note>
<p>
This parameter cannot be defined together with the <code>disk name</code> parameter. The
<code>instance name</code> and <code>disk name</code> parameters are mutually exclusive.
</p>
</note>

@return The unique name of the source instance (<code>Amazon_Linux-512MB-Virginia-1</code>). When this is
        defined, a snapshot of the instance's system volume is created.</p> <note>
        <p>
        This parameter cannot be defined together with the <code>disk name</code> parameter. The
        <code>instance name</code> and <code>disk name</code> parameters are mutually exclusive.
        </p>
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/CreateDiskSnapshotRequest.java