Function: rmdir
This tool belongs to the Gorilla file system. It is a simple file system that allows users to perform basic file operations such as navigating directories, creating files and directories, reading and writing to files, etc. Tool description: Remove a directory at current directory.
Parameters: dir_name: type: string
description: The name of the directory to remove. Directory must be local to the current directory. 
Required parameters: dir_name
Response: result: type: string
description: The result of the remove operation.