The art of TypeScript data type conversion

Seeking assistance with transitioning a C# function to TypeScript/Angular JS 2:

public static MyModel GetDetails(IDictionary<string, object> Obj) {

  MyModel dlModel = new MyModel();
  if (Obj.ContainsKey("action"))

    dlModel.action = ((IEnumerable<object>)Obj["action"]).Cast<string>().ToList();
  if (Obj.ContainsKey("parameters")) {

    List<object> pr = ((IEnumerable<object>)Obj["parameters"]).Cast<object>().ToList();
    foreach (object obj in pr) {
      IDictionary<string, object> kValue = (IDictionary<string, object>)obj;

      dlModel.parameters.Add(new KeyValuePair<string, string>(kValue["Key"].ToString(), kValue["Value"].ToString()));


    }
}

Need guidance on utilizing IDictionary and IEnumerable data types in TypeScript for the above scenario.

angulartypescripttype-conversion

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