def find_first_remote_branch(remotes: Sequence["Remote"], branch_name: str) -> "RemoteReference":
    """Find the remote branch matching the name of the given branch or raise
    :exc:`~git.exc.InvalidGitRepositoryError`."""
    for remote in remotes:
        try:
            return remote.refs[branch_name]
        except IndexError:
            continue
        # END exception handling
    # END for remote
    raise InvalidGitRepositoryError("Didn't find remote branch '%r' in any of the given remotes" % branch_name)
Find the remote branch matching the name of the given branch or raise
    :exc:`~git.exc.InvalidGitRepositoryError`.
git/objects/submodule/util.py