Pihrtsoft.Text.RegularExpressions.Linq.Chars.AtSign C# (CSharp) Method

        public static CharGrouping AtSign() => Character(AsciiChar.AtSign);

 /// <summary>
 /// Appends a pattern that matches an at sign.
 /// </summary>
 /// <returns></returns>
 public CharGrouping AtSign() => Append(Chars.AtSign());