code: public static boolean eq(CharSequence a, CharSequence b) {
          return of(a).equals(of(b));
      }
docs: Check if two {@link CharSequence}s are keyword identical.
  
  This method is an alias of {@link #equals(CharSequence, CharSequence)}.
  
  @param a the first char sequence
  @param b the second char sequence
  @return `true` if `a` and `b` are keyword identical