You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: S2AxisFieldHarmonic.m
    path of file: ./repos/mtex/S2Fun/@S2AxisFieldHarmonic
    
    the code of the file until where you have to start completion: classdef S2AxisFieldHarmonic < S2AxisField
% a class represeneting a axis field on the sphere

properties
  sF;
end

properties(Dependent = true, Access = prot
    
function bw = get.bandwidth(sVF), bw = sVF.sF.bandwidth; end
  function xx = get.xx(sVF), xx = sVF.sF(1); end
  function xy = get.xy(sVF), xy = sVF.sF(2); end
  function yy = get.yy(sVF), yy = sVF.sF(3); end
  function xz = get.xz(sVF), xz = sVF.sF(4); end
  function yz = get.yz(sVF), yz = sVF.sF(5); end
  function zz = get.zz(sVF), zz = sVF.sF(6); end
  function sVF = set.xx(sVF, xx), sVF.sF(1) = xx; end
  function sVF = set.xy(sVF, xy), sVF.sF(2) = xy; end
  function sVF = set.yy(sVF, yy), sVF.sF(3) = yy; end
  function sVF = set.xz(sVF, xz), sVF.sF(4) = xz; end
  function sVF = set.yz(sVF, yz), sVF.sF(5) = yz; end
  function sVF = set.zz(sVF, zz), sVF.sF(6) = zz; end

end

methods(Static = true)
  sAF = quadrature(f, varargin)
  sAF = approximation(v, y, varargin)
  function sAF = normal
    sAF = S2AxisFieldHarmonic.quadrature(@(v) v(:),'bandwidth',2);
  end