/// <summary>
 /// Allows the authenticating users to follow the user specified in the userName parameter.
 /// </summary>
 /// <param name="tokens">The tokens.</param>
 /// <param name="userName">The user name.</param>
 /// <param name="options">The options.</param>
 /// <returns>
 /// Returns the followed user in the requested format when successful.
 /// </returns>
 public static TwitterResponse<TwitterUser> Create(OAuthTokens tokens, string userName, CreateFriendshipOptions options)
 {
     Commands.CreateFriendshipCommand command = new Commands.CreateFriendshipCommand(tokens, userName, options);
     return CommandPerformer.PerformAction(command);
 }
 /// <summary>
 /// Allows the authenticating users to follow the user specified in the userID parameter.
 /// </summary>
 /// <param name="tokens">The tokens.</param>
 /// <param name="userId">The user id.</param>
 /// <param name="options">The options.</param>
 /// <returns>
 /// Returns the followed user in the requested format when successful.
 /// </returns>
 public static TwitterResponse<TwitterUser> Create(OAuthTokens tokens, decimal userId, CreateFriendshipOptions options)
 {
     Commands.CreateFriendshipCommand command = new Commands.CreateFriendshipCommand(tokens, userId, options);
     return CommandPerformer<TwitterUser>.PerformAction(command);
 }