@staticmethod
def create_pre_session(pre_session_magic, pk_hash, is_negated, tweak_is_set
    =False):
    """Creates a dictionary with fixed state values."""
    pre_session = dict()
    pre_session['pre_session_magic'] = pre_session_magic
    pre_session['pk_hash'] = pk_hash
    pre_session['is_negated'] = is_negated
    pre_session['tweak_is_set'] = tweak_is_set
    return pre_session
