tools (common/date_utils) handle timestamp and `in` + `delta2human`: regex used to parse datetimes has been improved to handle a unix time (which can be used with `+ <delta>` or `- <delta>`), and the `in <delta>` (e.g. `in 6 days`). `DEFAULT_DATETIME` has been removed as dateutil use current date by default, which is the expected behaviour. Add `delta2human` method which convert the difference of 2 unix times to a human friendly approximate text. rel 372

.. _libervia-cli_blog_attachments:

===================================================
blog/attachments: (un)attach Metadata to Blog Items
===================================================

Blog attachments subcommands are the same as  :ref:`pubsub attachments
<libervia-cli_pubsub_attachments>` subcommands except that if ``--node`` is not specified,
default blog node will be used. Please refer to pubsub attachments documentation for
details.