https://cme-test.mc.vanderbilt.edu/api/sms/attendance.json
  ▿ url : Optional<URL>
    ▿ some : https://cme-test.mc.vanderbilt.edu/api/sms/attendance.json
  - cachePolicy : 0
  - timeoutInterval : 60.0
  - mainDocumentURL : nil
  - networkServiceType : __ObjC.NSURLRequest.NetworkServiceType
  - allowsCellularAccess : true
  ▿ httpMethod : Optional<String>
    - some : "POST"
  ▿ allHTTPHeaderFields : Optional<Dictionary<String, String>>
    ▿ some : 2 elements
      ▿ 0 : 2 elements
        - .0 : "Content-Type"
        - .1 : "application/json"
      ▿ 1 : 2 elements
        - .0 : "X-CSRF-Token"
        - .1 : "t6O0VDZ7lvYxyW66jCRrX-DxqozPygYmR8byPgY9AC4"