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: MakeSlackAttachment.m
    path of file: ./repos/SlackMatlab
    
    the code of the file until where you have to start completion: function sAttachment = MakeSlackAttachment(strFallback, strText, strPreText, strColor, varargin)


    
function sAttachment = MakeSlackAttachment(strFallback, strText, strPreText, strColor, varargin)

% MakeSlackAttachment - FUNCTION Construct an attachment to add to a Slack notification
%
% Usage: sAttachment = MakeSlackAttachment(strFallback, <strText>, <strPreText>, strColor, ...)
% Usage: sAttachment = MakeSlackAttachment(..., {strField1Title, strField1Value, <bField1Short>}, {strField2Title, strField2Value, <bField2Short>}, ...)
% 
% Creates an attachment structure, to send