How to include synonym.txt of index while packaging?
I have created synonym.txt for a index in one environment and trying to import to another environment using ensure oak of acs commons.After import i am not able to see synonym.txt .
Followed link: https://adobe-consulting-services.github.io/acs-aem-commons/features/ensure-oak-index/index.html
Details are :
Local Author:

After exporting package , i see like this:

synonymn.txt is under filters folder.
I created damAssetLunce.xml under my projects apps/oak-index
<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:oak="http://jackrabbit.apache.org/oak/ns/1.0" xmlns:dam="http://www.day.com/dam/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0" xmlns:nt="http://www.jcp.org/jcr/nt/1.0" xmlns:rep="internal"
compatVersion="{Long}2"
async="async"
jcr:primaryType="oak:Unstructured"
type="lucene">
<aggregates jcr:primaryType="nt:unstructured">
<dam:AssetContent jcr:primaryType="nt:unstructured">
<include0
jcr:primaryType="nt:unstructured"
path="related"/>
<include1
jcr:primaryType="nt:unstructured"
path="related/*"/>
<include2
jcr:primaryType="nt:unstructured"
path="related/*/*"/>
</dam:AssetContent>
</aggregates>
<analyzers jcr:primaryType="nt:unstructured">
<default jcr:primaryType="nt:unstructured">
<tokenizer
jcr:primaryType="nt:unstructured"
name="Standard"/>
<filters jcr:primaryType="nt:unstructured">
<Synonym
jcr:primaryType="nt:unstructured"
synonyms="synonym.txt">
<synonym.txt/>
</Synonym>
</filters>
</default>
</analyzers>
<indexRules jcr:primaryType="nt:unstructured">
<dam:AssetContent
jcr:primaryType="nt:unstructured"
includePropertyTypes="all">
<properties jcr:primaryType="nt:unstructured">
<cqParentPath
jcr:primaryType="nt:unstructured"
analyzed="{Boolean}true"
isRegexp="{Boolean}false"
name="cq:parentPath"
nodeScopeIndex="{Boolean}true"
propertyIndex="{Boolean}true"
useInExcerpt="{Boolean}true"/>
</properties>
</dam:AssetContent>
</indexRules>
</jcr:root>
in same oak-index ,i moved damAssetContentLucene folder

Local Publish
After import into another environment, i see the following:

I cannot find/not imported synonymn.txt in the server.
Can someone suggest me , what wrong i am doing?.
Thanks in advance