Create a python thread$-$safe Class that uploads a file from the local machine to a remote LINUX machine using Paramiko & SFTP$.$ Create a lock to ensure that local file is unchanged during upload process to LINUX machine.

The constructor should take arguments to connect to the LINUX machine and have a private variable that allows python to lock the file.

The class should have a method that takes $1$ string argument of local path to file. This method should lock the file, upload the file, then remove the lock on the file.

You are not required to run or test this class. Just the class definition is needed.