code: public List<String> searchGuildID(String name) throws GuildWars2Exception {
  		isParamValid(new ParamChecker(ParamType.GUILD, name));
  		try {
  			Response<List<String>> response = gw2API.searchGuildID(name).execute();
  			if (!response.isSuccessful()) throwError(response.code(), response.errorBody());
  			return response.body();
  		} catch (IOException e) {
  			throw new GuildWars2Exception(ErrorCode.Network, "Network Error: " + e.getMessage());
  		}
  	}
docs: For more info on guild Search API go <a href="https://wiki.guildwars2.com/wiki/API:2/guild/search">here</a><br/>
  
  @param name guild name
  @return list of guild id(s) of guilds that have matching name
  @throws GuildWars2Exception see {@link ErrorCode} for detail