Unable to push to remote after committing files

I am committing some files using pygit2 and want to push to remote branch.
This is what i am doing:

        repo = pygit2.Repository(build_dir)
        branch = repo.lookup_branch(local_branch)
        repo.checkout(branch)
        for fl in files:
           repo.index.add(fl)
        repo.index.write()
        message = f"Commiting files {files}"
        tree = repo.index.write_tree()
        parent, ref = repo.resolve_refish(refish=repo.head.name)
        author = pygit2.Signature("user", "email")
        commiter = pygit2.Signature("user", "email")

        repo.create_commit(
            ref.name,
            author,
            commiter,
            message,
            tree,
            [parent.oid],
        )



        remote = repo.remotes["origin"]
        callbacks = pygit2.RemoteCallbacks(pygit2.UserPass("username", GITHUB_PERSONAL_ACCESS_TOKEN))
        remote.push(['refs/heads/master'],callbacks=callbacks)

And i get an error:
_pygit2.GitError: unsupported URL protocol

I cannot find any documentation or any clarity on whats going on here.

Any help will be much appreciated.

thanks

Start by inspecting the repository's configured origin URL and the remote.push call, then verify how the provided RemoteCallbacks and UserPass credentials are used. Reproduce the unsupported URL protocol error with the shown pygit2 code and compare the remote configuration with supported protocols. Done means identifying the configuration or callback issue and documenting a verified successful push.