User turns:
user: Delete all the files in a directory including the directory.
user: The directory has a name of 'Drafts'.

Involved APIs: MessageAPI
GorillaFileSystem
Ground-truth function call path:
GorillaFileSystem.echo
GorillaFileSystem.sort
GorillaFileSystem.diff
GorillaFileSystem.cp
GorillaFileSystem.mv
GorillaFileSystem.cat
MessageAPI.send_message