public java.util.List<String> getTagKeys() {
        if (tagKeys == null) {
            tagKeys = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return tagKeys;
    }
<p>
The key value for a snapshot schedule tag.
</p>

@return The key value for a snapshot schedule tag.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/DescribeSnapshotSchedulesRequest.java