What is the benefit of inherit the mymodel class with dictionary<string, object>

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C#

API

Hi,
I am trying to understand the benefit of inheriting the model class with

Dictionary<String, Object> 

in web api project.

Below is the sample of model class.

using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.Serialization;
using Newtonsoft.Json;

namespace IO.Swagger.Model {

  /// <summary>
  /// 
  /// </summary>
  [DataContract]
  public class ApiErrorResponse : Dictionary<String, Object> {
    /// <summary>
    /// Gets or Sets Errors
    /// </summary>
    [DataMember(Name="Errors", EmitDefaultValue=false)]
    [JsonProperty(PropertyName = "Errors")]
    public List<IntegrationErrorDto> Errors { get; set; }

    /// <summary>
    /// Gets or Sets CorrelationKey
    /// </summary>
    [DataMember(Name="CorrelationKey", EmitDefaultValue=false)]
    [JsonProperty(PropertyName = "CorrelationKey")]
    public string CorrelationKey { get; set; }


    /// <summary>
    /// Get the string presentation of the object
    /// </summary>
    /// <returns>String presentation of the object</returns>
    public override string ToString()  {
      var sb = new StringBuilder();
      sb.Append("class ApiErrorResponse {\n");
      sb.Append("  Errors: ").Append(Errors).Append("\n");
      sb.Append("  CorrelationKey: ").Append(CorrelationKey).Append("\n");
      sb.Append("}\n");
      return sb.ToString();
    }
    /// <summary>
    /// Get the JSON string presentation of the object
    /// </summary>
    /// <returns>JSON string presentation of the object</returns>
    public  new string ToJson() {
      return JsonConvert.SerializeObject(this, Formatting.Indented);
    }

}
}

Each model class are inherited form

Dictionary<String, Object>

Ech model class override the

ToString() method

each model class have

ToJson()

method.

Please help me to figure out the situation in which i can follow the same approach

What I have tried:

What is notice that

ToJson()

METHOD EASILY SERIALIZE THE OBJECT DATA.