https://docs.fcc.gov/public/attachments/DOC-387840A1.pdf

{
  "appName": "fcc-edocspublic-exp-api-v1",
  "version": "1.0",
  "success": false,
  "errorType": "APIKIT:NOT_ACCEPTABLE",
  "description": "Not Acceptable",
  "correlationId": "7e3dda20-4501-11ed-b80c-023c99c4ab58"
}