def is_fq_local_branch(ref):
    """Return True if a Git reference is a fully qualified local branch.

    Return False otherwise.

    Usage example:
        >>> is_fq_local_branch("refs/heads/master")
        True

        >>> is_fq_local_branch("refs/remotes/origin/master")
        False

        >>> is_fq_local_branch("refs/notes/commits")
        False

    """
    return ref.startswith('refs/heads/')