Gets the storage units for a node.

    @type node: str
    @param node: the node whose storage units to return
    @type storage_type: str
    @param storage_type: storage type whose units to return
    @type output_fields: str
    @param output_fields: storage type fields to return

    @rtype: int
    @return: job id where results can be retrieved

def GetNodeStorageUnits(r, node, storage_type, output_fields):
    """
    Gets the storage units for a node.

    @type node: str
    @param node: the node whose storage units to return
    @type storage_type: str
    @param storage_type: storage type whose units to return
    @type output_fields: str
    @param output_fields: storage type fields to return

    @rtype: int
    @return: job id where results can be retrieved
    """

    query = {
        "storage_type": storage_type,
        "output_fields": output_fields,
    }

    return r.request("get", "/2/nodes/%s/storage" % node, query=query)