How to change the file name of data export to file process

Summary:Hello, in PBCS, we have an integration to export some data, the filter changes, then, this data changes, how can we change the file name dynamically?

Right now, the name is for example, Actual_export.txt and we´d like to have Budget_export.txt

Content (please ensure you mask any confidential information):

For the integration, we do:

HttpResponse<String> jsonResponse = operation.application.getConnection("Pipeline").post()
.body(json(["jobType":"INTEGRATION",
"jobName":"DLR_DATA_EXPORT_TEST",
"periodName":"{Mar-24}",
"importMode":"REPLACE",
"exportMode":"REPLACE",
"fileName":"test_export.txt",
"sourceFilters":[
"Currency":"EUR"]
] ))
.asString();

but this

"fileName":"test_export.txt",

seems to be not valid.