[C#] Merge two Dictionaries together

DictionaryExtensions.cs

using System.Collections.Generic;
using System.Linq;

public static class DictionaryExtensions
{
  /// <summary>
  ///   <para />Merges this dictionary with another dictionary
  ///   <example>
  ///   <code>
  ///     Dictionary&lt;string, int&gt; dictionary = dictionary.MergeWith(otherDictionary);
  ///   </code>
  ///   </example>
  /// </summary>
  /// <returns>
  ///   <para />Merged dictionary with provided dictionary as a parameter
  /// </returns>
  public static Dictionary<TKey, TValue> MergeWith<TKey, TValue>(this Dictionary<TKey, TValue> thisDictionary, Dictionary<TKey, TValue> otherDictionary)
    => thisDictionary.Union(otherDictionary).ToDictionary(k => k.Key, v => v.Value);
}