如何在mex函数中添加"help"-text？

function y = my_mex_function(x)
%MY_MEX_FUNCTION - A brief description of the function
%   This function does something.
%
%   Syntax:
%       y = my_mex_function(x)
%
%   Inputs:
%       x - A description of the input
%
%   Outputs:
%       y - A description of the output
%
%   Example:
%       y = my_mex_function(x)

% Your function implementation goes here

end

mex my_mex_function.m

help my_mex_function