DOC: add preview warning for ampform_dpd.io.serialization

docs/serialization.ipynb

@@ -9,6 +9,17 @@
     "# Model serialization"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "This notebooks illustrates the use of the {mod}`ampform_dpd.io.serialization` module, which can be used to build amplitude models from the [amplitude-serialization](https://rub-ep1.github.io/amplitude-serialization) initiative.\n",
+    "\n",
+    ":::{warning}\n",
+    "The {mode}`ampform_dpd.io.serialization` module is a preview feature.\n",
+    ":::"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {
@@ -679,6 +690,9 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "jupyter": {
+     "source_hidden": true
+    },
     "tags": [
      "hide-input",
      "full-width",
@@ -793,6 +807,17 @@
     "### Validation"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "tags": []
+   },
+   "source": [
+    ":::{error}\n",
+    "The following serves as a numerical check on whether the amplitude model has been deserialized correctly. For now, this is not the case, see [ComPWA/ampform-dpd#133](https://github.com/ComPWA/ampform-dpd/issues/133) for updates.\n",
+    ":::"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -950,8 +975,12 @@
     "jupyter": {
      "source_hidden": true
     },
+    "mystnb": {
+     "code_prompt_show": "Dalitz plot is not yet correct"
+    },
     "tags": [
-     "hide-input"
+     "hide-input",
+     "hide-output"
     ]
    },
    "outputs": [],

src/ampform_dpd/io/serialization/__init__.py

@@ -0,0 +1,5 @@
+"""Amplitude model serialization
+
+See :doc:`/usage/serialization` for more information and
+`https://rub-ep1.github.io/amplitude-serialization/`_ for more information.
+"""