Give the server information about this node

    Arguments:
        node -- node_name or token for the node this data belongs to
        key  -- identifiable key, that you use later to retrieve that piece of data
        kwargs -- the data you need to store

def post(node_name, key, **kwargs):
    """ Give the server information about this node

    Arguments:
        node -- node_name or token for the node this data belongs to
        key  -- identifiable key, that you use later to retrieve that piece of data
        kwargs -- the data you need to store
    """
    node = nago.core.get_node(node_name)
    if not node:
        raise ValueError("Node named %s not found" % node_name)
    token = node.token
    node_data[token] = node_data[token] or {}
    node_data[token][key] = kwargs
    return "thanks!"