Changes to Endpoint para emitir un documento soporte electrónico a la DIAN

the response property files/applicationResponse became nullable for the status 200

the response property files/xml became nullable for the status 200

added the new optional header request parameter Idempotency-Key

added the new optional request property withholdingTaxTotal

added the non-success response with the status 409

added the non-success response with the status 422