How do I load a file from a server side script's file cabinet folder without knowing the path in adv

I am using SuiteScript 2.0 with a map/reduce script (server side) and I want to load a text file from the same file cabinet folder/directory that the script is located in without hard coding the path.  Since I plan to bundle the solution I would like to use a relative path, in the typical operating system sense, to the script's file cabinet folder or be able to get the path to script's file cabinet folder. Is there a SuiteScript 2.0 API way of doing this?

This works:

 define(['N/file', ....], ...    var filepath = "/SuiteScripts/MySolution/myquery.gql.txt";  var myfile = file.load({id: filepath});