Fix a bug in an open source golang cli tool

Hello, I am using this golang tool: [login to view URL] However, there is a bug in it. The tool needs to send one request and something in the request is wrong. The correct request can be reproduced using the method in the PDF. I presume that just a field or two are not correct, and simply need to be added/fixed in the tool's code. A more detailed explanation of the bug is in the attached PDF. If this project is completed on time and with quality, another project for the same tool will be offered to the freelancer. As I need to filter out not serious freelancers, please start your proposition with answer to the following question: Is the golang tool using the golang modules?