struct for parsing google distance json in swif

Question

This is the json output from https://maps.googleapis.com/maps/api/distancematrix/json?origins=rijssen&destinations=almelo&mode=driving&language=en&key=

   { "destination_addresses" : [ "Almelo, Netherlands" ],
     "origin_addresses" : [ "Rijssen, Netherlands" ],
     "rows" : [
       {
         "elements" : [
          {
             "distance" : {
              "text" : "14.1 km",
              "value" : 14090
           },
             "duration" : {
              "text" : "21 mins",
              "value" : 1267
           },
             "status" : "OK"
        }
       ]
     }
    ],
    "status" : "OK"
    }

this is the struct in Swift

struct Model: Codable{
let destination_addresses : [String]
let origin_addresses : [String]
let rows : [Elements]
let status : String
  }
struct Elements: Codable {
let elements:[Distance]
  }
struct Distance: Codable{
let distance:Value
let duration:Value
let status:String
  }
struct Value: Codable{
let text:String
let value:Int
 }

This is the api request

guard let url = URL(string: api) else { return }
   URLSession.shared.dataTask(with: url) { (data, response, error) in
    do {
     if let data = data {
       let result = try JSONDecoder().decode([Model].self, from: data)

error in compiler

The data couldn’t be read because it isn’t in the correct format.

Why is the code not working? Thank you i.a.