public Task ChangeGlobalOption(Aria2Option option, string value) => ChangeGlobalOptions(new Aria2Options { [option] = value });
public async Task <string> GetGlobalOption(Aria2Option option) => (await GetGlobalOptions())[option];
public Task ChangeOption(string gid, Aria2Option option, string value) => ChangeOptions(gid, new Aria2Options { [option] = value });
public async Task <string> GetOption(string gid, Aria2Option option) => (await GetOptions(gid))[option];