@staticmethod
def _wall_post(session, owner_id, message=None, attachments=None,
    from_group=True):
    """
        https://vk.com/dev/wall.post
        attachments: "photo100172_166443618,photo-1_265827614"
        """
    response = session.fetch('wall.post', owner_id=owner_id, message=
        message, attachments=attachments, from_group=from_group)
    return response
